While we're still tracking a few lingering House races from Super Tuesday, four more states — Georgia, Hawaii, Mississippi and Washington — held presidential nominating contests yesterday, enabling both Biden and Trump to cross a significant milestone. According to ABC News's delegate estimates, last night Biden passed 1,968 delegates, mathematically clinching him the Democratic nomination. Similarly, Trump last night passed 1,215 delegates, mathematically clinching him the Republican nod.

—Nathaniel Rakich, 538

As we wait for the final winners of Super Tuesday's primaries to be projected, here's where things stand in the races we're tracking:

- California's 16th District: With 57 percent of the expected vote reporting, Democrat Sam Liccardo has 22 percent, Democrat Joe Simitian has 18 percent, Democrat Evan Low has 16 percent and Republican Peter Ohtaki has 13 percent. This is a solid blue district, so we expect two Democrats to advance to the general election.

- California's 20th District: ABC News has projected that Republican Vince Fong (currently at 39 percent with 52 percent of the expected vote counted) will take one of the general-election slots, but the other is still up for grabs between Republican Mike Boudreaux (25 percent) and Democrat Marisa Wood (22 percent).

- California's 22nd District: With 50 percent of the expected vote counted, Republican incumbent David Valadao has 34 percent, Democrat Rudy Salas has 28 percent, Republican Chris Mathys has 22 percent and Democrat Melissa Hurtado has 15 percent. Democrats were afraid of getting shut out of the general election in this swing seat, but that doesn't look likely to happen now.

- California's 31st District: Democrats should maybe be more worried about a lockout in this open, safely Democratic seat. With 70 percent of the expected vote in, Democrat Gil Cisneros has 21 percent, Republican Daniel Martinez has 21 percent and Republican Pedro Casas has 19 percent.

- California's 45th District: ABC News has projected that Republican Rep. Michelle Steel will advance to the general; she has 57 percent of the expected vote with 82 percent reporting. Her November opponent will either be Democrat Derek Tran (16 percent) or Democrat Kim Nguyen-Penaloza (14 percent).

- North Carolina's 8th District: With 97 percent of the expected vote in, Republican Mark Harris is at 30.4 percent, just barely above the threshold to avoid a runoff. The Associated Press has already declared him the winner.

- Texas's 32nd District: Similarly, with 99 percent of the expected vote in, Democrat Julie Johnson is at 50.4 percent, which would just barely be enough to avoid a runoff. If she does face one, it would be against fellow Democrat Brian Williams, who is at 19 percent of the vote.

—Nathaniel Rakich, 538

Good morning! We continue to track the handful of House races that still don't have winners, mostly in California. As a reminder, California votes almost entirely by mail, and while ballots had to be postmarked by March 5, they can arrive as late as March 12 and still count. Therefore, there are still thousands of ballots out there to be counted, so we could be waiting for several days.

In the meantime, though, we can cross one unresolved congressional race off the list: In California's 30th District, ABC News reports that Democrat Laura Friedman and Republican Alex Balekian are projected to advance to the general election in November. The 30th District is the seat that Schiff is leaving behind to run for Senate, and it's safely Democratic, so Friedman, a former film producer and state assemblywoman, should have no problem winning in the fall. The primary result is kind of a lucky break for her, actually, as there was a chance that she was going to face a fellow Democrat like Anthony Portantino or Mike Feuer in November, which would have been a dogfight.

P.S. People with long memories might remember that "Boy Meets World" star Ben Savage was also running for this seat, but he ended up finishing seventh with just 4 percent.

—Nathaniel Rakich, 538

ABC News is also projecting the general-election candidates in two California House races:

- In the 47th District, Republican Scott Baugh and Democrat Dave Min have advanced out of the top two primary, leaving Democrat Joanna Weiss out in the cold. This is the seat that Democratic Rep. Katie Porter vacated to run for Senate, and it will be tough for Democrats to defend. Some Democrats are worried that Min's DUI arrest last year could drag him down.

- In the 49th District, Democratic Rep. Mike Levin and Republican Matt Gunderson have advanced to the general election. Biden carried this district by 11 points in 2020, so it'll probably stay in Democratic hands, but it's not out of the question that Gunderson could win in the fall.

—Nathaniel Rakich, 538

On Sunday, Republicans in Washington, D.C., voted for Haley by nearly 30 percentage points in the GOP's party-run primary, giving her all 19 national delegates from the nation's capital. This marked her first victory anywhere in this year’s primary contest, and the first ever primary or caucus victory for a woman in the history of Republican nomination races. Yet the other contests that took place just ahead of Super Tuesday otherwise showcased Trump's strong hold over his party's base. This included victories on Saturday in caucus-convention races in Idaho, Michigan and Missouri, and in North Dakota's Republican caucuses on Monday.

In Michigan, Republicans gathered at Saturday's state party convention to allocate 39 national delegates from the state’s 13 congressional districts (three per district). The voters consisted of precinct delegates mostly elected at the August 2022 state primary as well as Republican elected officials, and they handed Trump all 39 district-level delegates. This result brought Trump's Michigan haul to 51 of the state's 55 delegates, after he had already won 12 of its 16 at-large delegates in the Feb. 27 primary.

The Michigan GOP's split primary-caucus approach came about in part because national Democrats added Michigan to the early part of their presidential primary calendar, prompting the Democratic-controlled state government to shift the state’s primary date into late February. Since the new date violated the national GOP's calendar rules, Michigan Republicans used a workaround whereby the primary results would allocate the state's at-large national delegates, but the state party didn’t formally make the allocation until March, at Saturday’s caucus-convention that also allocated district-level delegates.

Trump also swept caucuses in Idaho and Missouri on Saturday, and then North Dakota on Monday. In Idaho, Trump won 85 percent of caucusgoers, easily surpassing the state's 50 percent winner-take-all threshold to capture all 32 of Idaho's national delegates. In Missouri, Trump won every state- and congressional district convention delegate elected at local caucuses around the state, all but guaranteeing that he will sweep all 51 national delegates when the district and state conventions formally allocate delegates in April and May, respectively. And in a near-repeat of Idaho, Trump won 84 percent of caucusgoers in North Dakota on Monday to claim all 29 of the state’s national delegates.

—Geoffrey Skelley, 538