President Obama is planning to endorse Sen. Brian Schatz (D-HI) over his challenger, Rep. Colleen Hanabusa (D-HI), in the state’s competitive Senate Democratic primary, the Huffington Post reports.

“The president’s endorsement will come later Monday, according to a source familiar with the plan who was not authorized to speak publicly before the announcement.”

The Fix: “Rarely do endorsements move the needle in the campaigns. They are often overhyped and mean far less than the campaigns who tout them would lead you to believe. But this one matters. Big time.”

The Week: “In a development that might not bode well for their electoral prospects, Democrats appear to be pushing news stories selectively framing their 2014 losses — some seven months out from Election Day.”

“There were many candidates at the Republican Jewish Coalition’s annual spring meeting Saturday at The Venetian. But there was only one real contender,” the Las Vegas Review Journal reports.

“If there can be said to be a winner of what the Washington Post dubbed the ‘Adelson primary,’ for Las Vegas Sands Chairman Sheldon Adelson, it was New Jersey Gov. Chris Christie. Apart from almost every other speaker, Christie showed a pragmatic understanding of the real nature of politics — winning comes first — without seeming as if he was ready to sell his soul to move from Trenton to Washington, D.C.”

“You can ask anything you want, but you’ll have to talk to the wall, because I’m not talking to you.”

— Casino magnate Sheldon Adelson, quoted by Politico, before reporter Ken Vogel was escorted out by security.

The Monkey Cage: “As we have begun to incorporate candidate experience into the model, our initial sense is this: Republicans may have a far better chance of winning control of the Senate than we or other analysts previously thought. Here is a preliminary estimate: The GOP could have as much as a 4 in 5 chance of controlling the chamber.”

The Week: 5 key insights in the GOP’s political strategy

Former dairy executive Scottie Mayfield says congressional candidate Weston Wamp (R) secretly recorded a conversation they had when Wamp came to his home to talk him out of supporting Rep. Chuck Fleischmann (R-TN) in the August Republican primary, the Chattanooga Times Free Press reports.

“Despite predictions that more District residents would vote early for mayor, the opposite has turned out to be true — a sign of potentially historic low turnout and a reason for new uncertainty in Tuesday’s already fluid Democratic primary,” the Washington Post reports.

“Even if Democrats recruit great candidates, raise gobs of money and run smart campaigns, they face an uphill fight to retake control of the House in this year’s congressional elections, regardless of the political climate in November,” the AP reports.

“The reason? Republican strategists spent years developing a plan to take advantage of the 2010 census, first by winning state legislatures and then redrawing House districts to tilt the playing field in their favor. Their success was unprecedented.”

“In states like Ohio, Michigan and North Carolina, Republicans were able to shape congressional maps to pack as many Democratic voters as possible into the fewest House districts. The practice is called gerrymandering, and it left fertile ground elsewhere in each state to spread Republican voters among more districts, increasing the GOP’s chances of winning more seats.”

“Faced with a strong prospect of losing control of the Senate in November, Democrats have begun a high-stakes effort to try to overcome one of their party’s big weaknesses: voters who don’t show up for midterm elections,” the Los Angeles Times reports.

“The party’s Senate campaign committee plans to spend $60 million to boost turnout. That’s nine times what it spent in the last midterm election, in 2010.”

“The Democratic National Committee has begun to make the sophisticated data analysis tools developed to target voters in the 2012 presidential campaign available to all the party’s candidates.”

Rep. Michael Grimm (R-NY) is using comedian Bill Maher’s Flip a District campaign as a fund-raising opportunity, the New York Observer reports.

“The Republican lawmaker’s campaign fired off an email to supporters earlier this afternoon declaring that Staten Island and Brooklyn voters do not agree with Mr. Maher’s ‘anti-Catholic, leftist propaganda.'”