About an hour and a half south of Trone's party in Baltimore — in Angela Alsobrooks's home turf of Prince George's County — supporters and staff for the county executive are beginning to fill up Martin's Crosswinds catering center in Greenbelt. Lights are dim with crystal chandeliers glistening; jazz, oldies (and a little Beyonce) is coming out of the speakers and beef wellington, fried shrimp and salmon cakes are heating up on silver burners. Like at the "Trone HQ," Alsobrooks's election night party venue feels very much like a Sweet Sixteen or prom — and some of the attendees have said the same. Overheard moments ago was one voter remarking to another how she came here for high school dances. The candidate, who has captured the backing of much of the Maryland establishment, seems to be appealing to that base of supporters here on election night.

—Isabella Murray, ABC News

It's 8 p.m. Eastern, so polls have now closed in Maryland as well. Stay tuned for results from the big races there!

—Nathaniel Rakich, 538

I've arrived at "Trone HQ" for the night. His campaign has completely taken over the flashy Baltimore Museum of Industry that sits right on the city's beautiful harbor. And I mean taken over — entire event dropped right in the middle of the exhibit floor. It's clear that he spared no expense, as multiple stations of caterers are busy setting (delicious looking) sliders and finger foods in front of exhibits about the history of Bethlehem Steel as bartenders ready their area by the waterfront view.

This is not a cheap event. It reminds me of the fanciest Sweet Sixteens I attended on Long Island (a true feat, if you know you know) — and to no one's surprise, as Trone's campaign spent at least $48 million of the more than $60 million total spent on ads in this contest, according to AdImpact. In fact, the press pen is nestled next to a vintage Buffalo Springfield steamroller. Talk about hitting us over the head with metaphor! I'd be curious what it looks like over at Alsobrooks's election party ...

—Brittany Shepherd, ABC News

Nebraska has a busy electoral slate today, but only one primary looks potentially intriguing: the GOP contest in the Omaha-based 2nd District. Republican Rep. Don Bacon is seeking reelection, but Biden would have carried the seat by 6 points in 2020 and Bacon only won reelection by about 3 points in 2022 against Democratic state Sen. Tony Vargas. Bacon's reputation as a relative moderate has helped him hold onto this purple seat, but it's also made him potentially vulnerable to a more conservative primary challenger.

That has made the campaign of Dan Frei, an Omaha businessman running to Bacon's right, one to monitor tonight. Though it's unlikely given the incumbent's fundraising advantage and outside spending support, were Frei to upset Bacon, that would likely make the 2nd District more winnable in November for Vargas, who has raised $2.4 million for an anticipated rematch against Bacon. But Frei has come close to pulling off a primary upset here before: In 2014, his insurgent campaign only lost 53 percent to 47 percent against then-Rep. Lee Terry despite being outspent about 20-to-one.

—Geoffrey Skelley, 538

Tonight, we'll be monitoring how candidates of color perform in primaries for governor, U.S. Senate and the U.S. House of Representatives. Overall, 47 people of color are running in these contests — 36 Democrats and 11 Republicans. Almost all of the candidates (44) are running in Maryland, which is one of the most racially and ethnically diverse states in the country.

The marquee Maryland race involving a candidate of color is, of course, the Democratic primary for Senate. If Alsobrooks makes it through both the primary and general election, she will be only the third Black woman ever elected to the Senate — although she may be tied for that distinction with Rep. Lisa Blunt Rochester, who is a strong favorite to win in Delaware.

Down the Maryland ballot, a number of candidates are running in the solidly blue 3rd District. In the Democratic primary, former Capitol Hill police officer Harry Dunn, who is Black, has been a fundraising machine but finds himself in a tight contest in against state Sen. Sarah Elfreth, who is white. State Sen. Clarence Lam, who is of East Asian descent, may have an outside shot of catching Dunn and/or Elfreth, while three other legislators of color — Dels. Mark Chang, Terri Hill and Mike Rogers — look unlikely to break through. On the GOP side, retired Air Force officer Berney Flowers, who is Black, has raised a bit more than his primary opponents, although the Republican nominee will have virtually no chance here.

In the blue-leaning 6th District, state Del. Joe Vogel, a Latino, is locked in a close race with former Commerce Department official April McCalin Delaney. A third contender, Hagerstown Mayor Tekesha Martinez, who is Black, has raised a sizable amount of campaign cash, too. In the mix in the Republican primary are Air Force veteran Mariela Roca, who is Latina, and former Del. Brenda Thiam, who was the first Black female Republican to ever sit in the Maryland legislature. However, this crowded race could go in a lot of directions.

Elsewhere, in the solidly blue 2nd District, Del. Harry Bhandari, a Nepali immigrant, looks like a significant underdog in the Democratic primary against Baltimore County Executive Johnny Olszewski. The GOP favorite in that seat may be Kim Klacik, a Black woman whose failed 2020 campaign in the solidly Democratic 7th District raised millions after Trump retweeted her campaign ad. She has raised far less this time around, and whomever Republicans nominate will be a huge underdog in November.

In the dark-blue 5th District, health care executive Quincy Bareebe, a Ugandan immigrant, has loaned her campaign more than $200,000 in her long-shot primary challenge to longtime Rep. Steny Hoyer. On the Republican side, Charles County GOP chair Michelle Talkington, who is half Black and half white, has no opposition in her primary. Reps. Glenn Ivey and Kweisi Mfume, both Black incumbents, should easily win renomination in their safe blue seats.

Outside Maryland, state Sen. Tony Vargas, who is Latino, is unopposed for the Democratic nomination in Nebraska's highly competitive 2nd District. And in Nebraska's special election for Senate, community advocate Preston Love Jr., who is Black, is also unopposed but will stand little chance in the general election. In West Virginia's dark-red 2nd District, Walker, who is Black, has raised a lot of money in the Republican primary but, as Nathaniel wrote earlier, looks like an underdog against Moore.

—Geoffrey Skelley, 538