A new CNN/ORC poll finds that 60% of GOP voters think that if no candidate wins a majority of the delegates in the first ballot at the Republican convention, then the delegates should vote for “the candidate with the most support in the primaries and caucuses.”

The Fix: “It’s also uniquely possible that Trump gets to the number he needs and all of this debate is rendered moot… But, Trump is savvy enough to understand that he needs a Plan B in case he fails to win the nomination outright. Expect to hear lots more talk from Trump about why the nominee should be whoever has the most delegates and votes when the primary process ends on June 7. It’s a self-serving argument, sure, but it’s also one that a majority of Republicans agree with.”

Byron York: “The Republican presidential race has been in overdrive since the Iowa caucuses on February 1; there have been more than 30 contests in the 51 days since then. And next Tuesday, there will be… nothing.”

“For the first time since voting began, there will be a two-week gap between Tuesday’s votes, in Arizona and Utah, and the next contest in Wisconsin on April 5. (And Wisconsin will be the only primary that day.) After that, there will be another two-week gap before the New York primary on April 19 — again, the only primary of the day.”

Politico: Trump and Cruz shift to trench warfare

Hillary Clinton and Donald Trump “overwhelmed their rivals in the Arizona primaries on Tuesday,” the New York Times reports,”a show of might from two presidential front-runners who are hoping to avoid prolonging the nominating contest and begin training their fire on each other.”

“But Sen. Bernie Sanders thrashed Mrs. Clinton in the Idaho and Utah Democratic caucuses, demonstrating his enduring appeal among liberal activists even as she closes in on the party’s nomination. And Sen. Ted Cruz, who won the Republican contest in Utah, captured more than 50 percent of the vote, giving him all 40 of the state’s delegates and sustaining hope among Mr. Trump’s opponents that he can be slowed, if not stopped.”

A new Quinnipiac poll finds Donald Trump leads the GOP presidential race nationally with 43%, followed by Ted Cruz at 29% and John Kasich at 16%.

On the Democratic side, Hillary Clinton leads Bernie Sanders, 50% to 38%.

Politico: Cruz and Kasich voters prefer Trump as second choice.

Politico: “Now many national security specialists fear that further attacks like the bombings that killed at least 30 people in Brussels on Tuesday will fuel Trump’s further rise, drawing more voters to his clenched-fist approach of closed borders and retribution killings — and could ultimately pave his unlikely path to the White House.”

Doug Sosnik: “Until now, Trump has defied the laws of political gravity; but the fact that no major political party has ever nominated such an unpopular candidate for president is inescapable. The strategy that Trump used to appeal to Republican primary voters who are conservative and disproportionately white will work against him with the moderate, diverse electorate this November. It is difficult to understate the level of negative attitudes toward Trump.”

“Regardless of how you do the math, the current environment paints a picture of a Republican Party at the verge of implosion during the most critical period in the presidential campaign. Assuming little changes, years from now people will look back at the decisive nine-day period in mid-October last fall when the stage was set for the 2016 elections. In this narrow window, Hillary Clinton soundly routed Bernie Sanders in the first and single most important Democratic debate of the season, Vice President Biden announced that he wouldn’t run for president and Clinton publicly demonstrated her strength and fortitude during 11 hours of testimony in front of the House Select Committee on Benghazi—a hearing that resembled a Kangaroo Court.”

“Meanwhile, loudly and in full view, sitting high atop the polls facing little or no resistance, Donald Trump was gathering steam toward the Republican nomination and a backward-looking Republican Party was gasping its last breath. And the same Republican Party that once viewed Trump as a laughingstock is now intent on undermining his candidacy.”

“The terrorists will cause Hillary Clinton to lose the election. She’s weak on borders. She’s weak on crime. She’s weak on anything having to do with controversy other than controversy with herself. She’s weak on the police. She’s weak on anything having to do with strength. Hillary is so weak on the borders, and so afraid to talk negatively about protecting our people, that it will end up costing her the election in my opinion.”

— Donald Trump, quoted by Politico.