Perhaps the most interesting elections today in Idaho — where the first polls have just closed — are for the obscure position of precinct committeeman for the local GOP. As Monica has written, many state Republican parties are at war with themselves, and that’s the case in Idaho as well: Two traditionalist GOP groups, North Idaho Republicans and Gem State Conservatives, are trying to win as many precinct committeemen posts as possible in order to wrest control away from the party’s right wing, some of whom have ties to white nationalists.

—Nathaniel Rakich, 538

Incumbent Democratic Rep. Scott has won his primary against 6 challengers, according to The Associated Press. He is likely to win reelection in this safe blue seat outside of Atlanta in November.

—Monica Potts, 538

It’s 10 p.m. Eastern, which means that polls are now closed in most of Idaho (the southern, most populous part) as well as in a sliver of eastern Oregon (however, the vast vast majority of Oregon won’t be done voting until 11 p.m. Eastern).

—Nathaniel Rakich, 538

Interesting, Monica! In a January survey from RABA Research, Kentucky voters were asked if they supported "diverting taxpayer dollars away from neighborhood public schools to use for private school vouchers." Only 26 percent said they supported vouchers and 74 percent opposed — though the question wording is a bit loaded, so we may expect that support could be a tad higher with a more neutral question. But given the very low support, I'm fascinated to hear that it's still a live issue in the state.

—Mary Radcliffe, 538

Looking ahead to Oregon's results, the Portland-based 3rd District hosts one of the big contests of the night. Longtime Rep. Earl Blumenauer's retirement has left open this solidly blue seat, and three contenders with progressive brands are competing for the Democratic nomination: state Rep. Maxine Dexter, former Multnomah County Commissioner Susheela Jayapal and Gresham City Councilor Eddy Morales. At first blush, Jayapal looked to be the front-runner, as she previously represented close to 30 percent of the 3rd District's overall population — far more than Dexter or Morales. She also sports ties to national progressives via her younger sister, Washington Rep. Pramila Jayapal, who chairs the Congressional Progressive Caucus.

Yet a late campaign cash bonanza may have turned the race on its head, to Dexter's benefit. Pre-primary financial reports through May 1 showed that Dexter had received a massive late boost to bring her campaign total to $919,000, ahead of Jayapal's $773,000 and Morales's $606,000. And from May 2 to May 19, Dexter reported $419,000 in major contributions, far more than her opponents' combined $150,000. Meanwhile, outside groups have spent more than $5 million either supporting Dexter or opposing Jayapal. The 314 Action Fund, a progressive group that supports candidates with science backgrounds, has doled out $2.2 million on ads promoting Dexter and a super PAC with unclear ties, Voters for Responsive Government, has spent $3.2 million on spots attacking Jayapal.

This surge of money has brooked controversy because it appears at least partly connected to the American Israel Public Affairs Committee, a bipartisan pro-Israel group opposed to progressive critics of Israel's military action in Gaza. While Dexter supports "a negotiated cease-fire" and Morales has called for aid to Gaza, Jayapal has emphasized her consistent and early calls for a cease-fire — so it would follow that groups like AIPAC would prefer that someone else wins. Tellingly, an analysis by Oregon Public Broadcasting found that a substantial portion of Dexter's last-minute donors have a history of giving to AIPAC, and some recently supported notable Republicans such as House Speaker Mike Johnson.

More controversially, The Intercept published reports in early May alleging that AIPAC funneled money to the 314 Action Fund to spend on Dexter's behalf, presumably because more direct intervention by AIPAC could backfire in a progressive-inclined district. The 314 Action Fund denied the allegations, and in the last pre-primary filing from the group on Monday evening, it turned out that a substantial chunk of the organization's recently raised cash came from billionaire former New York City Mayor Michael Bloomberg and financier Rob Granieri. Either way, the money could prove to be a massive difference-maker for Dexter's campaign.

—Geoffrey Skelley, 538