Election Day: An hour-by-hour viewer’s guide

For a solid hour on Tuesday, all eyes will be trained on Lexington, Ky., and its suburbs, where Rep. Andy BarrAndy Hale BarrMcConnell's Democratic challenger says she likely would have voted for Kavanaugh On The Money: Fed chief hints strongly at rate cut | Powell lays out 'serious concerns' over Facebook crypto project | Trump official to investigate French tech tax | Acosta defends Epstein deal Fed chief strongly hints at July rate cut in House testimony MORE (R) is running for reelection against retired Marine Lt. Col. Amy McGrath (D).

That’s because Kentucky closes its polling places at 6 p.m. local time — and Barr’s 6th District is the only competitive race based entirely within the Eastern time zone.

Here’s an hour-by-hour look at how Election Day will unfold, and what to watch as the polls close.

6 p.m. Eastern — The Canary in Coal Country

Barr represents a district that voted for President TrumpDonald John TrumpPompeo changes staff for Russia meeting after concerns raised about top negotiator's ties: report House unravels with rise of 'Les Enfants Terrible' Ben Carson: Trump is not a racist and his comments were not racist MORE by a 15-point margin in 2016 — but it’s a seat with Democratic roots, one long held by former Rep. Ben Chandler (D). If McGrath pulls off an early upset, Republicans are likely going to have a very bad night. But if Barr hangs on, as polling indicates, the GOP’s House majority is still in play.

7 p.m. — The First Hints

Six states close their polling places at 7 p.m., from liberal Vermont to conservative South Carolina, and the rest of Kentucky.

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Vote-counting will begin in two of the hottest races in the country: Georgia’s gubernatorial race, a fierce battle between Secretary of State Brian Kemp (R) and state House Minority Leader Stacey Abrams (D), and Indiana’s Senate race, where Sen. Joe DonnellyJoseph (Joe) Simon DonnellyTrump nominees meet fiercest opposition from Warren, Sanders, Gillibrand GOP frets over nightmare scenario for Senate primaries McConnell's Democratic challenger McGrath backtracks on Kavanaugh comments MORE (D) faces former state Rep. Mike Braun (R).

If Donnelly loses quickly, it would augur poorly for other red-state Democratic senators. But if he prevails, Sens. Claire McCaskillClaire Conner McCaskillTrump nominees meet fiercest opposition from Warren, Sanders, Gillibrand Feds allow campaigns to accept discounted cybersecurity services GOP frets over nightmare scenario for Senate primaries MORE (D-Mo.) and Heidi HeitkampMary (Heidi) Kathryn HeitkampTrump nominees meet fiercest opposition from Warren, Sanders, Gillibrand McConnell's Democratic challenger McGrath backtracks on Kavanaugh comments McConnell's Democratic challenger says she likely would have voted for Kavanaugh MORE (D-N.D.) may find reason for optimism.

In Virginia, voters in the Richmond suburbs and Norfolk will reveal some of the first hints of the size of the Democratic advantage in the House. GOP Reps. Scott TaylorScott William TaylorFormer GOP rep launches Senate campaign in Virginia Virginia special prosecutor indicts former GOP campaign staffer The 31 Trump districts that will determine the next House majority MORE and Dave Brat have tough fights on their hands, and a Democrat is even making a run at outgoing Rep. Tom GarrettThomas (Tom) Alexander GarrettFemale Dems see double standard in Klobuchar accusations Ethics investigation finds outgoing House Republican made staff unload groceries, dog-sit Trump signs bill naming post office after soldier whose parents he attacked MORE’s (R) seat. If Democrats take two of those, the Republican majority is probably gone.

7:30 p.m. — A Blue Moon and a Blue Dog

Polls close in North Carolina, Ohio and West Virginia at this time. Two red-state Senate Democrats will see their fates decided: Sen. Sherrod BrownSherrod Campbell BrownThe Hill's Morning Report - A raucous debate on race ends with Trump admonishment On The Money: Senators unload on Facebook cryptocurrency | Tech giants on defensive at antitrust hearing | Democrats ask Labor Department to investigate Amazon warehouses Hillicon Valley: Senators unload on Facebook cryptocurrency plan | Trump vows to 'take a look' at Google's ties to China | Google denies working with China's military | Tech execs on defensive at antitrust hearing | Bill would bar business with Huawei MORE (Ohio) is likely to cruise to reelection, and Sen. Joe ManchinJoseph (Joe) ManchinTrump nominees meet fiercest opposition from Warren, Sanders, Gillibrand Kentucky Democrat says primary challenge to McGrath 'might be helpful' McConnell's Democratic challenger McGrath backtracks on Kavanaugh comments MORE (W.Va.) is favored to win, but in a much tighter race.

Democrats will get the first signs of their ability to flip Republican-held governorships across the Midwest when Ohio begins counting its ballots. Former state Attorney General Richard CordrayRichard Adams CordrayWatchdog agency must pick a side: Consumers or scammers Kraninger's CFPB gives consumers the tools to help themselves House rebukes Mulvaney's efforts to rein in consumer bureau MORE (D), who was later head of the Consumer Financial Protection Bureau in Washington, is fighting his successor, Mike DeWine (R), for the right to succeed term-limited Gov. John Kasich (R).

North Carolina experiences what they call a "blue moon" election, a rare year in which neither the governor nor a senator is on the ballot. That probably means lower turnout, but Democrats are running surprisingly strong races against Reps. George HoldingGeorge Edward Bell HoldingDelay of new trade deal harms America's digital advantage Republicans troll Democrats with proposals to rename upcoming health care bill GOP lawmaker calls for investigation into alleged 'anti-Israeli bias' at Duke-UNC conference MORE (R) and Ted BuddTheodore (Ted) Paul BuddConservatives ask Barr to lay out Trump's rationale for census question 58 GOP lawmakers vote against disaster aid bill Blockchain could spark renaissance economy MORE (R), and for a seat held by Rep. Robert PittengerRobert Miller PittengerBottom Line North Carolina reporter says there could be 'new crop' of GOP candidates in 9th Congressional District race North Carolina board calls for new election in contested House race MORE (R), who lost his primary.

8 p.m. — The Big Enchilada

Sixteen states and the District of Columbia are done voting by 8 p.m. Eastern, including a handful of states that will give a fuller picture of the electorate’s mood.

Governor’s races will be decided in Alabama, Connecticut, Florida, Illinois, Maine, Maryland, Massachusetts, New Hampshire, Oklahoma, Pennsylvania, Rhode Island and Tennessee.

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The biggest prize for Democrats would be in Florida, scene of a nasty battle between Tallahassee Mayor Andrew Gillum (D) and former Rep. Ron DeSantisRonald Dion DeSantisDeSantis wants statue of civil rights activist to replace Confederate figure on Capitol Hill Florida couple wins right to plant vegetables in front yard after years-long legal battle Former sheriff running for reelection after suspension over Parkland shooting MORE (R). In Connecticut, businessman Bob Stefanowski (R) is running a particularly tough race against progressive hero Ned Lamont (D). Expect Govs. Charlie Baker (R) of Massachusetts and Larry Hogan (R) of Maryland to win reelection easily, thanks to ticket-splitters who will also reelect Sens. Elizabeth WarrenElizabeth Ann WarrenHarris tops Biden in California 2020 poll The Hill's Morning Report - A raucous debate on race ends with Trump admonishment Democrats fret over Trump cash machine MORE (D-Mass.) and Ben CardinBenjamin (Ben) Louis CardinCan new US Strategy on Women, Peace & Security give women a real seat at the table? Ask Afghan women Maryland lawmakers slam 'despicable' Trump remark about journalists on newsroom shooting anniversary Democrats leery of Sanders plan to cancel student loan debt MORE (D-Md.).

Vote-counting also begins in key Senate races in Florida, Missouri, New Jersey, Pennsylvania and Tennessee. In Mississippi, expect Sen. Cindy Hyde-Smith (R) and former Agriculture Secretary Mike Espy (D) to head to a late November runoff.

The House battleground expands to Democratic targets in Florida, Illinois, Maine, New Hampshire, New Jersey, Oklahoma — where a PAC linked to former New York City Mayor Michael Bloomberg is making a late play against Rep. Steve RussellSteven (Steve) Dane RussellThe 31 Trump districts that will determine the next House majority 5 themes to watch for in 2020 fight for House Oklahoma New Members 2019 MORE (R) — and Pennsylvania. Democrats are going to pick up a handful of seats in Pennsylvania, where the state Supreme Court ordered district maps redrawn earlier this year.

Voters in the District of Columbia are likely to reelect Mayor Muriel Bowser (D).

Delaware and Rhode Island start their vote counts at 8 p.m., too.

8:30 p.m. — The (French) Hill to Die On

Arkansas voters are likely to reelect Gov. Asa Hutchinson (R). The only truly competitive race here is in the state’s 2nd District, where Rep. French HillJames (French) French HillA true believer in diversity, inclusion Restore Pell Grant eligibility to people in prison Here are the lawmakers who will forfeit their salaries during the shutdown MORE (R) faces a tough challenge from state Rep. Clarke Tucker (D). Hill is likely to win reelection, but the district has Democratic roots: Hill’s predecessor took over for Rep. Vic Snyder, a Democrat who held the Little Rock-based seat for 14 years.

9 p.m. — Go West, Young Man

The first Mountain West states start to close at this time, along with most of the Midwest.

Voters in Arizona, Michigan, Minnesota, North Dakota, Texas and Wisconsin are electing senators. Democrats are hopeful that Rep. Kyrsten Sinema (D) can defeat a charging Rep. Martha McSallyMartha Elizabeth McSallyTrump angry more Republicans haven't defended his tweets: report Republicans scramble to contain Trump fallout On The Money: Senators unload on Facebook cryptocurrency | Tech giants on defensive at antitrust hearing | Democrats ask Labor Department to investigate Amazon warehouses MORE (R) in Arizona, while Republicans believe Rep. Kevin CramerKevin John CramerTrump puts hopes for Fed revolution on unconventional candidate Trump nominees meet fiercest opposition from Warren, Sanders, Gillibrand Acosta on shaky ground as GOP support wavers MORE (R) will oust Heitkamp in North Dakota. And Sen. Ted CruzRafael (Ted) Edward CruzGoogle official denies allegations of ties to China The Hill's Morning Report - Presented by JUUL Labs - House to vote to condemn Trump tweet Cruz in 2016 said 'something fundamentally wrong' with Christians who back Trump: book MORE (R) has a leg up on Rep. Beto O’Rourke (D), despite the Democrat’s absolutely mammoth fundraising performance.

New governors will be elected in Colorado, Kansas, Michigan, Minnesota, New Mexico, South Dakota and Wyoming, all states where the incumbents are termed out. Wisconsin Gov. Scott Walker (R) is in the fight of his life, while Govs. Andrew Cuomo (D) of New York, Doug Ducey (R) of Arizona and Greg Abbott (R) of Texas are skating toward another term.

Democrats and Republicans are battling over House districts in Arizona, Kansas, Michigan, Minnesota, Nebraska, New Mexico, New York, Texas and Wisconsin.

Voters in Louisiana don’t have many competitive races to decide, but they shouldn’t feel left out: The race for governor in 2019 kicks off just as soon as the polls close on Tuesday.

10 p.m. — Defining the Wave

If a Democratic blue wave is forming, we’ll get a sense of how high it is when polls close in Iowa, Montana, Nevada and Utah.

Reps. Rod Blum (R) and David YoungDavid Edmund YoungIowa Democrat calls foul on White House over Trump ethanol tour invite Iowa Republican ousted in 2018 says he will run to reclaim House seat The 31 Trump districts that will determine the next House majority MORE (R) face stiff challenges in Iowa, and both could lose without a tremendous wave breaking. But what about GOP Rep. Steve KingSteven (Steve) Arnold KingYoung Turks reporter tricks Steve King into tweeting about 'A Few Good Men' villain Holocaust survivor who offered to tour Auschwitz with Ocasio-Cortez calls for her to 'be removed from Congress' Liz Cheney hits back at Ocasio-Cortez over concentration camp comments: 'This isn't model Congress' MORE? While his district is much more conservative, King has become a lightning rod for associating himself with white supremacists across the country and around the world.

If Democrats are having a rough night in Senate races, this is the hour that will demonstrate just how bad it’s going: Their top target is Sen. Dean HellerDean Arthur HellerThis week: Barr back in hot seat over Mueller report Trump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign Trump picks ex-oil lobbyist David Bernhardt for Interior secretary MORE (R-Nev.), who’s running even with Rep. Jacky RosenJacklyn (Jacky) Sheryl RosenKey endorsements: A who's who in early states Female senators hatch plan to 'shame' Senate into voting faster Lawmakers introduce legislation to improve cyber workforce funding MORE (D) in most polls. Democrats are defending Sen. Jon TesterJonathan (Jon) TesterTrump nominees meet fiercest opposition from Warren, Sanders, Gillibrand The Hill's 12:30 Report: Pelosi looks to squash fight with progressives Democratic senators want candidates to take Swalwell's hint and drop out MORE (Mont.), who is in a surprisingly close and late-breaking race against state Auditor Matt Rosendale (R).

In Utah, Rep. Mia LoveLudmya (Mia) LoveFormer GOP lawmaker: Trump's tweets have to stop Congressional Women's Softball team releases roster The 31 Trump districts that will determine the next House majority MORE (R) finds herself in an unexpectedly tough battle; one poll shows her losing to Salt Lake County Mayor Ben McAdams (D).

11 p.m. — The Best Coast

Polls close in four of the five states that touch the Pacific Ocean, along with Idaho.

Voters in California and Idaho are electing new governors. California voters, especially those in the Central Valley and Orange County, will decide the fates of a handful of endangered House Republicans.

In Washington, voters will decide a hard-fought contest for a congressional seat being vacated by Rep. Dave ReichertDavid (Dave) George ReichertLymphedema Treatment Act would provide a commonsense solution to a fixable problem Yoder, Messer land on K Street Ex-GOP lawmaker from Washington joins lobbying firm MORE (R). If voters are really in the mood for change, Reps. Cathy McMorris RodgersCathy McMorris RodgersOvernight Energy: Fight over fuel standards intensifies | Democrats grill Trump officials over rule rollback | California official blasts EPA chief over broken talks | Former EPA official says Wheeler lied to Congress EPA head clashes with California over how car emissions negotiations broke down Lawmakers celebrate 100th anniversary of women getting the right to vote MORE (R) and Jaime Herrera BeutlerJaime Lynn Herrera BeutlerDems push to revive Congress' tech office Bill allowing Congress to hire Dreamers advances House fails to override Trump veto on border wall MORE (R) could also have uncomfortable nights — remember, no state kicked out more Democratic incumbents in the 1994 GOP wave than Washington.

Republicans have one more shot for an upset, this time in Oregon, where Gov. Kate Brown (D) is in a more difficult than expected battle for reelection.

Hawaii voters are likely to reelect Gov. David Ige (D) and send former Rep. Ed Case (D) back to Congress.

1 a.m. — The Aleutian Solution

The vast majority of polling places in Alaska close at midnight Eastern time, but seven hours after the first polls close in Kentucky, voters in parts of the Aleutian Islands will cast the final ballots of the 2018 general election.

Alaska voters will elect a new governor, after Gov. Bill Walker (I) dropped his reelection bid late last month. And one recent poll showed the dean of the House, Rep. Don YoungDonald (Don) Edwin YoungGOP scores procedural win by securing more funding to enforce Iran sanctions Ex-GOP lawmakers are face of marijuana blitz Congress: Pass legislation that invests in America's water future MORE (R), in trouble against education activist Alyse Galvin (D).