Voters in Alabama, Virginia, and Georgia head to the polls on Tuesday to select key candidates in Republican primaries and runoffs, further setting the stage for the upcoming November midterm elections and testing the trends inside the GOP away from the establishment and toward former President Donald Trump’s America First populist vision.

The biggest prize on Tuesday is the GOP nomination for U.S. Senate in Alabama, where Katie Britt faces off against Rep. Mo Brooks (R-AL) in the runoff. Britt, the former chief of staff for retiring Sen. Dick Shelby (R-AL), has won Trump’s endorsement in the final weeks of this race–which came in after Trump revoked it from Brooks earlier, before the first round of primary voting.

Interestingly, the establishment media has framed Britt as an establishment candidate, but nothing could be further from the truth. In fact, she has openly called for change and new blood in the GOP Senate leadership structure, and has championed plans offered by Sen. Tom Cotton (R-AR) that would slash legal immigration levels to the United States. In his statement endorsing her, Trump picked up on this, noting that Britt believes Senate GOP leader Mitch McConnell encouraged now failed candidate Mike Durant to run in the first round to try to stop her.

It is true that Brooks has been more aggressive in his calls for McConnell to go, and Brooks has tried to keep his campaign alive with some last-second endorsements from people like columnist Ann Coulter, but either way in this race the establishment will not be picking up an ally–Trump and America First outsiders will. Britt has taken an explosive lead in the final weeks in polling–in the first round of voting she blew away expectations and finished double digits better than her best polls–so seeing who emerges in Alabama and if Britt can deliver again will be particularly interesting.

Elsewhere, in Georgia, two Trump-backed congressional candidates–Jake Evans and Vernon Jones–face runoff opponents in Rich McCormick and Mike Collins respectively. Trump had a bad night in Georgia’s first round of primaries and both of these candidates finished in second place in that round, but Evans in particular seems to have rallied and Trump last night did a tele-town hall with him urging Georgians to back him.

In Virginia, several congressional primaries will be interesting to watch, particularly in both the Seventh and the Second Congressional Districts. In a state that flipped so hard to the right and elected GOP Gov. Glenn Youngkin last year, Republicans are hoping that momentum continues this year as they seek to oust Reps. Abigail Spanberger (D-VA) and Elaine Luria (D-VA), among possibly others. Nominees against them will be selected on Tuesday.

Technically, Tuesday will also see runoffs in Arkansas–but none of those races have major national significance even though they do matter locally. Follow along here for the latest as the results stream in on Tuesday night. The polls close in Virginia and Georgia at 7 p.m. ET, in Alabama at 8 p.m. ET, and in Arkansas at 8:30 p.m. ET.

UPDATE 9:01 p.m. ET:

More calls for Britt in Alabama:

UPDATE 8:54 p.m. ET:

It looks like Yesli Vega, a Hispanic woman, is going to win in Virginia’s 7th district GOP primary:

UPDATE 8:53 p.m. ET:

With 59 percent reporting now in Virginia’s 7th district GOP primary, Yesli Vega has moved back in front by about 500 votes–leading Derrick Anderson 26 percent to 24.5 percent.

UPDATE 8:45 p.m. ET:

With just 1 percent reporting in Alabama, Katie Britt has a solid lead over Mo Brooks–so solid that Dave Wasserman from the Cook Political Report has already called it:

UPDATE 8:36 p.m. ET:

Muriel Bowser, the Democrat mayor of Washington DC, has won her primary:

With 38 percent reporting when the AP made the call according to the New York Times, Bowser was under 60 percent at just 56.6 percent. Against an unserious challenger, that is not impressive at all–and a sign she may be seriously weak.

UPDATE 8:30 p.m. ET:

The AP officially calls it for Rich McCormick in Georgia as well:

UPDATE 8:29 p.m. ET:

With 55 percent reporting in Virginia’s 7th district GOP primary, Derrick Anderson has retaken the lead by 199 votes–at 25 percent. Yesli Vega is down at 24.4 percent. Extremely close photo finish race here.

UPDATE 8:16 p.m. ET:

Even though Trump’s picks lost in Georgia again tonight, the winners are fairly hardcore MAGA types anyway:

So even establishment folks are warning to beware of Trump haters rejoicing over this.

UPDATE 8:13 p.m. ET:

The very first votes are reporting in from Alabama, where Katie Britt has a lead over Mo Brooks with just over a hundred votes in so far.

UPDATE 8:05 p.m. ET:

With 54 percent in now, Yesli Vega has moved back up in the lead by less than 100 votes over Derrick Anderson. She has 25 percent and he has 24.7 percent. Close, close race in Virginia’s 7th district GOP primary.

UPDATE 8:04 p.m. ET:

With 50 percent reporting in Virginia’s 7th district GOP primary, Derrick Anderson has now taken a slightly less than 100 vote lead over Yesli Vega. He has 24.7 percent to her 24.3 percent.

UPDATE 8:00 p.m. ET:

The polls have closed now in Alabama, and also in Washington DC. The mayor of the nation’s capital is facing a primary challenge, and in Alabama the U.S. Senate runoff for the GOP nomination is particularly heated. Results are expected in both imminently.

UPDATE 7:59 p.m. ET:

The AP officially calls it for Mike Collins in Georgia:

UPDATE 7:57 p.m. ET:

With 46 percent reporting, Yesli Vega still leads Derrick Anderson in Virginia’s 7th district GOP primary in a close race. She has 25.6 percent and he has 24.6 percent–her lead is currently less than 300 votes.

UPDATE 7:47 p.m. ET:

The AP officially calls it for Kiggans in Virginia’s second district:

UPDATE 7:39 p.m. ET:

Wasserman calls it in Georgia’s sixth:

That means two more Trump losses on the ledger.

UPDATE 7:38 p.m. ET:

In the sixth district runoff in Georgia, more votes just came in expanding Rich McCormick’s lead over Jake Evans. McCormick now has 71.9 percent and Evans has 28.1 percent with 4 percent reporting.

UPDATE 7:36 p.m. ET:

With 39 percent reporting in Virginia’s 7th congressional district GOP primary, Yesli Vega still leads a tight race with Derrick Anderson. She has 26.6 percent to his 24.9 percent.

UPDATE 7:24 p.m. ET:

However, Vega seems to be the favorite as her base is still not yet reporting, according to Dave Wasserman from the Cook Political Report:

UPDATE 7:23 p.m. ET:

In Virginia’s 7th district GOP primary, that much closer fight is carrying out as more results come in. Yesli Vega still leads, with 28.4 percent of the vote with 16 percent reporting, but Derrick Anderson is not far behind with 25.5 percent.

UPDATE 7:21 p.m. ET:

Kiggans is likely going to win the GOP nomination in Virginia’s second district:

UPDATE 7:18 p.m. ET:

In Georgia, Mike Collins–at least some are projecting–seems to have defeated Trump-backed Vernon Jones in the primary runoff:

UPDATE 7:17 p.m. ET:

With 13 percent now reporting in Virginia’s second district GOP primary, Jen Kiggans is cruising. She has 61.8 percent as compared with Bell’s 23 percent. Not over yet, but getting there.

UPDATE 7:14 p.m. ET:

In the 7th district GOP primary in Virginia, a much closer race is shaping up with just 1 percent reporting so far. Yesli Vega currently leads, but by less than 100 votes. It could be a long night and close race in this one.

UPDATE 7:12 p.m. ET:

Early results are coming in in Georgia as well, and Rich McCormick and Mike Collins both have substantial leads over their Trump-backed opponents in the early numbers.

UPDATE 7:10 p.m. ET:

About 3 percent is now reporting in Virginia’s second district and state Sen. Jen Kiggans has a huge lead with 63.7 percent to Jarome Bell’s 21.1 percent. Kiggans is the odds-on favorite to win this one so her early strong showing is unsurprising.

UPDATE 7:05 p.m. ET:

Per former President Donald Trump’s team, these are the endorsements Trump has on the line this evening:

Alabama-Senate: Britt, Katie
Virginia-01: Wittman, Rob
Virginia-06: Cline, Ben
Virginia-09: Griffith, Morgan
Georgia-06: Evans, Jake
Georgia-10: Jones, Vernon

UPDATE 7:02 p.m. ET:

Polls have closed in Georgia and Virginia. Results are expected to start coming in imminently.