OFF TO THE RACES: The contests in Alaska, Hawaii and Washington
What you need to know from Saturday night's nominating contests on the Democratic side: "Bernie Sanders swept all three Democratic caucuses on Saturday, with decisive victories over front-runner Hillary Clinton in Washington state, Alaska and Hawaii, according to NBC News analysis."
More, from POLITICO: "Bernie Sanders' winning streak - which includes blowout victories over Hillary Clinton in three states on Saturday - has helped him narrow the race for the Democratic presidential nomination. But if Sanders is going to surpass Hillary Clinton in pledged delegates to this summer's convention in Philadelphia, he'll need to build on that momentum and win by wide margins in the types of states where Clinton has prevailed thus far - and Sanders currently trails in most of them."
From the AP: "Donald Trump is planning to make his first campaign visit to Wisconsin on Tuesday, where the upcoming Republican presidential primary could mark a turning point in the unpredictable GOP race. But rival Ted Cruz has gotten a jumpstart on the contest, racking up influential endorsements, campaigning in key regions and supported by bullish advertising campaign."
CLINTON: The Los Angeles Times wrote over the weekend: "Federal prosecutors investigating the possible mishandling of classified materials on Hillary Clinton's private email server have begun the process of setting up formal interviews with some of her longtime and closest aides, according to two people familiar with the probe, an indication that the inquiry is moving into its final phases. Those interviews and the final review of the case, however, could still take many weeks, all but guaranteeing that the investigation will continue to dog Clinton's presidential campaign through most, if not all, of the remaining presidential primaries. No dates have been set for questioning the advisors, but a federal prosecutor in recent weeks has called their lawyers to alert them that he would soon be doing so, the sources said. Prosecutors also are expected to seek an interview with Clinton herself, though the timing remains unclear."
And the Washington Post traces Clinton's wrangling with State Department officials as she pushed for access to her BlackBerry in secure parts of the department. "Throughout, they paid insufficient attention to laws and regulations governing the handling of classified material and the preservation of government records, interviews and documents show. They also neglected repeated warnings about the security of the BlackBerry while Clinton and her closest aides took obvious security risks in using the basement server. Senior officials who helped Clinton with her BlackBerry claim they did not know details of the basement server, the State Department said, even though they received emails from her private account. One email written by a senior official mentioned the server."
CRUZ: From the New York Times: "As Mr. Cruz seeks to unite the disparate factions of the Republican Party that are bonded only by their dead-set opposition to Donald J. Trump, a high-wire act is required: welcoming the top ranks of the same establishment he has spent years excoriating while not abandoning the hard-line conservatives who like him in part because of his attacks on party leaders. While the Romney and Bush endorsements drew headlines, what has been just as striking is the sound of silence from the vast majority of Republican elected officials and leading donors. Nearly two weeks after Senator Marco Rubio dropped out of the race, there has been no mass rush to Mr. Cruz, even as he appears to be the last line of defense against a Trump nomination."
He said over the weekend that Trump is making personal attacks because he's "scared" and "out of his depth" on policy issues.
From Frank Bruni over the weekend: "Few of the Cruz converts actually think he can amass a majority of delegates and win the nomination before the convention. For that to happen, their endorsements of Cruz would have to scare off John Kasich and turn the contest into a two-man race, and Kasich doesn't seem to be scaring. The real goal is to buck up Cruz to a point where he prevents Trump from getting that majority and either passes him in the delegate count or draws close. Abracadabra: a contested convention."
KASICH: In an interview with one of us(!), he hedged on whether or not he would support Donald Trump as the nominee, saying "We're going to look at it every single day, and we'll see what happens. We've got a long way to go. And I don't want to project that he's going to be the nominee. I don't think he will be. And if he is ... I review it every day."
SANDERS: And in an interview with one of us(!), he pushed for more Democratic debates.
TRUMP: The New York Times looks at how Republicans are looking in the mirror about the party's abandonment of less affluent voters, making room for the rise of Trump.
He continues -- without evidence -- to accuse Cruz of coordinating with outside group Make America Awesome PAC on that social media ad targeting Melania Trump.
His daughter Ivanka gave birth to her third child.