Based on the blowouts in Oregon’s 3rd and 5th District Democratic primaries, is the lesson here just “big spending works”?

—Nathaniel Rakich, 538

With 55 percent of the expected vote reporting in the Republican primary for Oregon's 4th District, DeSpain's lead has increased over former Keizer city councilmember, Amy Ryan Courser. It now stands at 58 percent to 41 percent, respectively.

—Meredith Conroy, 538 contributor

In the Multnomah County District Attorney race, incumbent Mike Schmidt is trailing challenger Nathan Vasquez, 42 percent to 58 percent, with about half the expected votes reporting, according to the New York Times. Multnomah County is the most populous county in Oregon, and includes the city of Portland.

In an April survey, Portland area residents told DHM Research/The Oregonian that the two biggest concerns in their area were homelessness (53 percent) and crime (20 percent), two issues where the DA might make a difference. Respondents were particularly supportive of cracking down on homeless encampments: 63 percent said that "local governments should be allowed to ban people from camping in public spaces and fine or arrest anyone who refuses to leave," while just 27 percent disagreed.

Vasquez has blamed Schmidt and his policies for the rise in homelessness, drug use and crime in the area. And it looks like that approach may be working for him. He's off to a solid lead, and as this is a nonpartisan election, whoever wins tonight will take over the office.

—Mary Radcliffe, 538

Further down the ballot, Oregon voters also selected their party nominees for secretary of state and attorney general. Just a few minutes after polls closed (shoutout vote-by-mail!), ABC News reported that state Treasurer Tobias Read is projected to win the Democratic primary for secretary of state, the state's second-highest office. Read, who currently leads with 71 percent of the vote, had the establishment support and fundraising lead over state Sen. James Manning, who is in second place with 20 percent.

In April, Bolts Magazine wrote about this race as a test for different views on democracy and voting rights: Manning campaigned on a more progressive vision, including allowing incarcerated people to vote, while Read said he would prioritize fine-tuning the state's existing systems, including universal mail voting.

Oregon tends to elect Democrats statewide, so Read is probably the favorite to win in November over state Sen. Dennis Linthicum, the far-right Republican nominee who campaigned on ending vote-by-mail and was barred from running for reelection in the state Senate after he and other Republican lawmakers participated in a six-week quorum-denying protest over issues abortion, gun control and transgender health care.

ABC News also reports that state Rep. Dan Rayfield, who was state House Speaker for two years, is projected to be the Democratic nominee for attorney general. He'll face former prosecutor Will Lathrop in November in a race to succeed outgoing Attorney General Ellen Rosenblum, who is stepping down after 12 years in office.

—Irena Li, 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