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 BarrOn the Trail: Forget the pundits, more electoral votes could be in play in 2020 Mnuchin to lawmakers: 'I'm highly encouraged you will' pass Trump's North America trade deal Kentucky Democrat moves closer to McConnell challenge 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 TrumpTrump says his advice to impeachment defense team is 'just be honest' Trump expands tariffs on steel and aluminum imports CNN's Axelrod says impeachment didn't come up until 80 minutes into focus group 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 DonnellyGinsburg health scare raises prospect of election year Supreme Court battle Watchdog accuses pro-Kavanaugh group of sending illegal robotexts in 2018 Lobbying world 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 McCaskillHow Citizens United altered America's political landscape #MidnightMoscowMitch trends amid criticism of McConnell's proposed impeachment trial rules The most expensive congressional races of the last decade MORE (D-Mo.) and Heidi HeitkampMary (Heidi) Kathryn HeitkampSusan Collins set to play pivotal role in impeachment drama Pro-trade group launches media buy as Trump and Democrats near deal on new NAFTA The Hill's Morning Report — Biden steadies in third debate as top tier remains the same 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 TaylorAvenatti held in El Chapo's old jail cell, lawyers say Vulnerable Democrats feel heat ahead of impeachment vote The Hill's Morning Report - Sponsored by AdvaMed - Democrats to release articles of impeachment today 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 GarrettLiberty University official to launch primary challenge to GOP's Riggleman Female Dems see double standard in Klobuchar accusations Ethics investigation finds outgoing House Republican made staff unload groceries, dog-sit 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 BrownSchiff sparks blowback with head on a 'pike' line Sunday shows - All eyes on Senate impeachment trial Senate Democrat: 'Fine' to hear from Hunter Biden MORE (Ohio) is likely to cruise to reelection, and Sen. Joe ManchinJoseph (Joe) ManchinSchiff sparks blowback with head on a 'pike' line Schiff closes Democrats' impeachment arguments with emotional appeal to remove Trump Trump's trial a major test for McConnell, Schumer 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 CordrayHouse chairwoman backs interest rate cap on payday loans Democrats jump into Trump turf war over student loans Supreme Court agrees to hear challenge to consumer agency 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 HoldingGOP leaders encourage retiring lawmakers to give up committee posts House GOP vows to use impeachment to cut into Democratic majority Mark Walker mulling 2022 Senate bid, won't seek reelection in the House MORE (R) and Ted BuddTheodore (Ted) Paul BuddKoch network could target almost 200 races in 2020, official says The Hill's Morning Report - Vulnerable Dems are backing Trump impeachment The Hill's Campaign Report: Democrats worry about diversity on next debate stage 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 DeSantisFlorida Supreme Court rules convicted felons must pay fines, fees before voting Florida moves to purchase land to protect Everglades from oil drilling Top Latino group: Trump is about to hold a 'fake Christian campaign rally' 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 WarrenKlobuchar plans campaign rallies across Iowa despite impeachment trial Hillicon Valley — Presented by Philip Morris International — Wyden asks NSA to investigate White House cybersecurity | Commerce withdraws Huawei rule after Pentagon objects | Warren calls on Brazil to drop Greenwald charges Warren pledges to release Trump records if elected MORE (D-Mass.) and Ben CardinBenjamin (Ben) Louis CardinTensions between McConnell and Schumer run high as trial gains momentum New Parnas evidence escalates impeachment witnesses fight Pressure building on Pelosi over articles of impeachment 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 HillPelosi to Democrats: 'Are you ready?' The Suburban Caucus: Solutions for America's suburbs An unintended burden on small businesses 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 McSallyDemocrats feel political momentum swinging to them on impeachment Senate Republicans confident they'll win fight on witnesses How Citizens United altered America's political landscape MORE (R) in Arizona, while Republicans believe Rep. Kevin CramerKevin John CramerThe Hill's Morning Report - House prosecutes Trump as 'lawless,' 'corrupt' Collins walks impeachment tightrope Senate Republicans muscle through rules for Trump trial MORE (R) will oust Heitkamp in North Dakota. And Sen. Ted CruzRafael (Ted) Edward CruzJordan says he thinks trial will be over by next week The Hill's Morning Report — Dems detail case to remove Trump for abuse of power GOP-Biden feud looms over impeachment trial 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 YoungFormer 'Apprentice' contestant ranks Trump next to Mother Teresa on women's issues Churches are arming and training congregants in response to mass shootings: report Assault weapons ban picks up steam in Congress 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 KingNebraska Democratic Party Chair: Rural vote should be 'bedrock' of party With surge in anti-Semitism, political leaders need to be aggressive and reflective in response Steve King challenger: 2020 Democrats have 'huge' opportunity to win over rural America 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 HellerLobbying World Democrats spend big to put Senate in play This week: Barr back in hot seat over Mueller report MORE (R-Nev.), who’s running even with Rep. Jacky RosenJacklyn (Jacky) Sheryl RosenSenate confirms Trump's 50th circuit judge, despite 'not qualified' rating Hillicon Valley: Facebook to remove mentions of potential whistleblower's name | House Dems demand FCC action over leak of location data | Dem presses regulators to secure health care data Senators introduce bill to create 'parity' among broadband programs MORE (D) in most polls. Democrats are defending Sen. Jon TesterJonathan (Jon) TesterDemocrats feel political momentum swinging to them on impeachment Nadler gets under GOP's skin I'm a conservative against Citizens United 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 biggest political upsets of the decade Former GOP lawmaker: Trump's tweets have to stop Congressional Women's Softball team releases roster 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 ReichertBottom Line The most expensive congressional races of the last decade Lymphedema Treatment Act would provide a commonsense solution to a fixable problem MORE (R). If voters are really in the mood for change, Reps. Cathy McMorris RodgersCathy McMorris RodgersKoch network could target almost 200 races in 2020, official says Lawmakers voice skepticism over Facebook's deepfake ban House Ethics Committee finds McMorris Rodgers misused official resources MORE (R) and Jaime Herrera BeutlerJaime Lynn Herrera BeutlerDCCC to run ads tying 11 House Republicans to Trump remarks on entitlements Democrats launch bilingual ad campaign off drug pricing bill The Hill's Morning Report — Sponsored by AdvaMed — House panel delays impeachment vote until Friday 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 YoungRepublicans eye top spot on Natural Resources panel The Hill's 12:30 Report: Dems release first transcripts from impeachment probe witnesses GOP lawmaker head-butts MoveOn camera MORE (R), in trouble against education activist Alyse Galvin (D).