I certainly don't mean to blame my hardworking friends in the media. The view from academia is that I organized a whole class around the prospect of an exciting primary, cue the sad trombone noise. I agree with what you said, and also think this is sort of an outgrowth of the weirdness of a primary election. Is it a preliminary election with terrible turnout? A party process, but just a fairly open one? It's hard for all of us in the explaining business because it's honestly kind of a confusing thing.

—Julia Azari, 538 contributor

This is not a surprise, but ABC News projects that Trump will win the Republican primary in Oklahoma, based on an analysis of the vote. In the latest polling, he lead by nearly 80 points against Haley.

—Monica Potts, 538

Josh Stein, the North Carolina attorney general, is projected to be the Democratic nominee for governor. Stein was a state senator for 7 years before running for attorney general. He has twice beat out Republican candidates, and is the first Jewish person to be elected to statewide office in the state. His race against Robinson for governor will be one of the most closely watched come November, because a Republican win would give the GOP a trifecta for the first time since 2016.

—Kaleigh Rogers, 538

I'm watching Buckhout for another reason: She has the endorsement of the influential Susan B. Anthony List. The group started out endorsing pro-life women candidates as a kind of counterpart to women-supporting, pro-choice group EMILY'S List, but during the Obama administration also focused on endorsing Republicans against some anti-abortion Democratic women. It was a powerful insider voice against Roe v. Wade, and, since the fall of Roe v. Wade, has called for a national 15-week abortion ban. Democrats will run in November telling voters that the right to abortion nationwide is at stake, and abortion is definitely playing a role in Republican primaries across the country. With 22 percent of the expected vote reporting, Buckhout is currently leading with 56 percent of the vote so far.

—Monica Potts, 538

Haley took the stage in a bright red dress and in front of a row of American flags just after 10 a.m. from South Carolina, and announced she was suspending her presidential campaign. She began with a retrospective of the start of her campaign, and reiterated her conservative principles, including a low national debt, a small federal government and the need to promote democracy worldwide by standing by America's allies. With that, the final Trump challenger is out of the race, and Trump is the presumptive nominee, a fact Haley acknowledged.

Like most major candidates who ran for the Republican nomination, other than Trump, Haley had previously signed the RNC's pledge to support the eventual nominee, but she's distanced herself from that pledge a bit recently. Haley didn't endorse Trump this morning, but she did congratulate him, while slightly criticizing the way that he's run his campaign. "We must turn away from the darkness of hatred and division," she said. She went on to say that Trump needed to bring people into his cause, saying, "It is now up to Donald Trump to earn the vote of those in our party and beyond it." Haley has noted in previous speeches that she's captured a sizable portion of the vote in some states, even winning Washington, D.C., and Vermont, signaling that some Republican voters are dissatisfied with the former president as a choice for the future.

In the end, as Meredith noted, she made a somewhat rare reference to the historic nature of her campaign. She's the first Republican woman win any state's nominating contest, and she noted that her mother, a first-generation immigrant, had gotten to vote for her for president in South Carolina. She directed her final lines, quoting from the Book of Joshua, to women and girls who had watched her campaign.

—Monica Potts, 538