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 BarrGarland (Andy) Hale BarrKentucky radio host: Schumer recruit can't beat McConnell On The Money: Wells Fargo chief gets grilling | GOP, Pence discuss plan to defeat Dem emergency resolution | House chair sees '50-50' chance of passing Dem budget | Trump faces pressure over Boeing Campaign to draft Democratic challenger to McConnell starts raising funds 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 TrumpMueller report findings could be a 'good day' for Trump, Dem senator says Trump officials heading to China for trade talks next week Showdown looms over Mueller report 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 DonnellyLobbying World Lobbying World Overnight Energy: Trump taps ex-oil lobbyist Bernhardt to lead Interior | Bernhardt slams Obama officials for agency's ethics issues | Head of major green group steps down 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 McCaskillLobbying world Dem candidate has Hawley served subpoena at CPAC Annual scorecard ranks GOP environmental efforts far below Dems in 2018 MORE (D-Mo.) and Heidi HeitkampMary (Heidi) Kathryn HeitkampRed dresses displayed around American Indian museum to memorialize missing, murdered native women Lobbying World Lobbying World 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 TaylorThe 31 Trump districts that will determine the next House majority Ex-GOP Rep. Ryan Costello joins group pushing carbon tax Virginia New Members 2019 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 BrownWarren, Klobuchar call on FTC to curtail use of non-compete clauses The Hill's Morning Report - Trump, Dems put manufacturing sector in 2020 spotlight Trump faces political risks in fight over GM plant MORE (Ohio) is likely to cruise to reelection, and Sen. Joe ManchinJoseph (Joe) ManchinManchin says he won't support LGBTQ protection bill as written Senators offer bipartisan bill to fix 'retail glitch' in GOP tax law Murkowski, Manchin call for 'responsible solutions' to climate change 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 CordraySherrod Brown says he will not run for president CFPB confusing 'freedom of choice' with 'freedom to be fleeced' Consumer bureau chief to face lawmakers for first time since confirmation 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 HoldingKoch-backed group pushes for new limits on Trump's tariff authority House Dems unveil initial GOP targets in 2020 Election Day: An hour-by-hour viewer’s guide MORE (R) and Ted BuddTheodore (Ted) Paul BuddGOP's Tillis comes under pressure for taking on Trump The 23 Republicans who voted against the anti-hate resolution House passes anti-hate measure amid Dem tensions MORE (R), and for a seat held by Rep. Robert PittengerRobert Miller PittengerNorth 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 Obama political arm to merge with Holder-run group 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 DeSantisGillum launches voter-registration campaign Republicans need solutions on environment too Republicans up for reelection fear daylight with Trump 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 WarrenHere's what the Dem candidates for president said about the Mueller report Booker takes early lead in 2020 endorsements Harris wants Barr to testify on Mueller report as 2020 Dems call for its release MORE (D-Mass.) and Ben CardinBenjamin (Ben) Louis CardinWarren, Klobuchar call on FTC to curtail use of non-compete clauses Overnight Energy: EPA moves to raise ethanol levels in gasoline | Dems look to counter White House climate council | Zinke cleared of allegations tied to special election Democrats offer legislation to counter White House climate science council 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 HillHere are the lawmakers who will forfeit their salaries during the shutdown Rep. French Hill wins after unexpected challenge Election Day: An hour-by-hour viewer’s guide 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 McSallyArpaio's wife recovering after rattlesnake bite in Arizona Former astronaut running for Senate in Arizona returns money from paid speech in UAE The Hill's Morning Report — Washington readies for Mueller end game MORE (R) in Arizona, while Republicans believe Rep. Kevin CramerKevin John CramerOn The Money: Trump reverses North Korea sanctions imposed by Treasury | Trump to nominate Stephen Moore to Fed | Monthly deficit hits record 4 billion | IRS expands penalty relief for taxpayers Overnight Health Care: Dems demand answers on rule targeting Planned Parenthood | Senators tell FDA to speed approval of generic insulin | Nearly 8 in 10 say drug prices are 'unreasonable' in new poll Senators tell FDA to speed up approvals of generic insulin MORE (R) will oust Heitkamp in North Dakota. And Sen. Ted CruzRafael (Ted) Edward CruzCNN town halls put network at center of Dem primary The Memo: Trump can't let go of McCain grudge Michael Bennet is close to deciding on possible presidential bid 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 YoungThe 31 Trump districts that will determine the next House majority Anxiety grows in first tax season under Trump law Iowa New Members 2019 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 KingMan arrested for allegedly throwing glass of water at Steve King House Dem renews call for censuring Steve King Louisiana rep calls Steve King a 'white supremacist' after Katrina comment 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 HellerTrump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign Trump picks ex-oil lobbyist David Bernhardt for Interior secretary Oregon Dem top recipient of 2018 marijuana industry money, study finds MORE (R-Nev.), who’s running even with Rep. Jacky RosenJacklyn (Jacky) Sheryl RosenThe 31 Trump districts that will determine the next House majority The Hill's 12:30 Report: Manafort sentenced to total of 7.5 years in prison Female Dems see double standard in Klobuchar accusations MORE (D) in most polls. Democrats are defending Sen. Jon TesterJonathan (Jon) TesterSanders, Ocasio-Cortez back 'end the forever war' pledge Dems wrestle over how to vote on ‘Green New Deal’ White House pleads with Senate GOP on emergency declaration MORE (Mont.), who is in a surprisingly close and late-breaking race against state Auditor Matt Rosendale (R).

In Utah, Rep. Mia LoveLudmya (Mia) LoveThe 31 Trump districts that will determine the next House majority Juan Williams: Racial shifts spark fury in Trump and his base Trump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign 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 ReichertYoder, Messer land on K Street Ex-GOP lawmaker from Washington joins lobbying firm Outgoing GOP rep says law enforcement, not Congress should conduct investigations MORE (R). If voters are really in the mood for change, Reps. Cathy McMorris RodgersCathy McMorris RodgersThe 25 Republicans who defied Trump on emergency declaration GOP pushes back on net neutrality bill at testy hearing Hillicon Valley: Dems renew fight over net neutrality | Zuckerberg vows more 'privacy-focused' Facebook | House Dems focus on diversity in Silicon Valley | FBI chief warns of new disinformation campaigns MORE (R) and Jaime Herrera BeutlerJaime Lynn Herrera BeutlerThe 25 Republicans who defied Trump on emergency declaration 13 House Republicans who bucked Trump on emergency declaration House votes to overturn Trump's emergency declaration 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 YoungTulsi Gabbard, Don Young introduce marijuana reform bill Alaskan becomes longest serving Republican in House history The Hill's 12:30 Report: Sanders set to shake up 2020 race MORE (R), in trouble against education activist Alyse Galvin (D).