First Read's Morning Clips: Unrest in New Mexico

Riot police block off the Albuquerque Convention Center to anti-Trump protests following a rally and speech by Republican presidential candidate Donald Trump at the convention center where the event was held, in Albuquerque, N.M., Tuesday, May 24, 2016.Brennan Linsley / AP

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OFF TO THE RACES: Unrest in New Mexico

About last night, from "Police threw smoke devices and used what appeared to be pepper spray on crowds in Albuquerque on Tuesday after protests near a Donald Trump event turned violent, officials said. "Several" officers were injured after being hit by rocks, and at least one person was arrested, according to authorities."

Paul Ryan spokesperson AshLee Strong says of reports that Ryan may endorse Trump as early as this week: "There's no update and we've not told the Trump campaign to expect an endorsement."

"Nearly three-quarters of likely California voters say the economy and jobs are among the most important issues in deciding their vote ahead of the June 7 presidential primary, according to a USC Schwarzenegger Institute/Field Poll,” writes one of us(!). "The poll, which was shared exclusively to NBC News, finds that Democratic and Republican primary voters care almost equally about the economy and jobs: 73 percent of Democrats and 77 percent of Republicans say they are among their most important issues in deciding their vote. But that is where the similarities between the parties mostly end."

The Wall Street Journal writes that Ted Cruz's backers are seeking to change convention rules to give conservatives more input.

And the New York Times reports that GOP party activists are starting to toss around ideas about changing the nomination process.

NBC's Kailani Koenig reports that John Kasich is asking that his delegates stay bound to him at the Republican National Convention.

The Wall Street Journal offers some graphics on the popularity problem for Clinton and Trump.

NBC's Alex Jaffe on yesterday's back-and-forth between Clinton and Trump over the mogul's business record.

CLINTON: Her new weapon in the fight against Trump? Elizabeth Warren.

POLITICO writes that the 2016 race, for all its lack of orthodoxy, is turning into a fairly conventional 2012-style race.

SANDERS: He has asked for a recanvass in the Kentucky Democratic primary.

TRUMP: He got 76% of the vote in last night's Washington Republican primary.

The Washington Post's reporting on Trump's claims that he gave millions to veterans groups: "Trump, now the presumptive Republican presidential nominee, organized a nationally televised fundraiser for veterans’ causes in Des Moines on Jan. 28. That night, Trump said he had raised $6 million, including the gift from his own pocket. “Donald Trump gave $1 million,” he said then. As recently as last week, Trump’s campaign manager had insisted that the mogul had already given that money away. But that was false: Trump had not."

Rick Santorum endorsed Trump on Fox News.

The New York Times writes that Donald Trump is circumventing the traditional ways of floating negative stories in conservative media.

Here's a good summary of the conspiracy theories Trump has embraced, via NPR.

The AP reports on how Eric Trump is balancing working for his father's company and his campaign.