Trump breaks 50% in national support for the first time  —  Showing little sign of a “ceiling”, Donald Trump has only grown in support with the exit of Ben Carson and Marco Rubio's collapse … In the last two weeks, Republican frontrunner Donald Trump has won more delegates in primaries and caucuses …

Military Times survey: Troops back Donald Trump, Bernie Sanders for president  —  In an exclusive survey of American military personnel, Donald Trump and Bernie Sanders emerged as active-duty service members' top choices to become the next commander in chief.

Ben Carson to Newsmax: I'm Promised a Spot in Trump Administration  —  Dr. Ben Carson revealed on Newsmax TV Monday that he will work in Donald Trump's administration — at least in an “advisory capacity” — if the Republican presidential front-runner is elected to the White House.

Trump campaign manager's behavior prompted staff concerns  —  Donald Trump's staff and advisers have expressed concerns about campaign manager Corey Lewandowski's quick temper and heavy-handed leadership, and some even planned a coup against him last month, sources involved in the discussions told POLITICO.

Washington's Worst Job: President Obama's Next Supreme Court Nominee  —  The president may make a nomination this week—if he can find anyone crazy enough for the job.  —  President Barack Obama is said to have narrowed to three candidates his list of potential Supreme Court nominees to fill …

Working-Class Whites Have Moral Responsibilities — In Defense of Kevin Williamson  —  This weekend, my colleague Kevin Williamson kicked up quite the hornet's nest with his magazine piece (subscription required) that strikes directly at the idea that the white working-class (the heart of Trump's support) is a victim class.

A King in His Castle: How Donald Trump Lives, From His Longtime Butler  —  PALM BEACH, Fla. — Everything seemed to sparkle at the Mar-a-Lago estate here on a recent afternoon.  The sun glinted off the pool and the black Secret Service S.U.V.s in the circular driveway.

Tech mogul accused of keeping ex-stripper as sex slave for 13 years  —  A Silicon Valley venture capitalist has been sued for $40 million by a woman who claims he used her as a virtual sex slave for 13 years.  —  Michael Goguen, who had worked for a firm that funded Google and Paypal …

Clinton: 'We Didn't Lose a Single Person' in Libya  —  During MSNBC's town hall with Hillary Clinton on Monday, Clinton discussed foreign policy in Libya.  —  She said that Libya isn't perfect, but is making progress.  She added, “Libya was a different kind of calculation, and we didn't lose a single person.”

The Note: High Stakes Tuesday Is Here  —  In the biggest day of voting since Super Tuesday, Americans in five states and one territory head to the polls today to cast their ballots for the presidential nomination.  More states and delegates may have been up for grabs on March 1 …

Trump's Fundraising for Others Left Deep Roots  —  The Palm Beach County GOP hopes to raise more than $300,000 at an upcoming event where Trump will deliver the keynote.  —  He might be self-financing his campaign, but Donald Trump is no stranger to political fundraising.

Theranos CEO Elizabeth Holmes Is Holding a Hillary Fundraiser With Chelsea Clinton  —  Elizabeth Holmes, CEO of the embattled blood-testing startup Theranos, has lost commercial partners, board members and a lot of credibility over the last few months.  Prize-winning reporting …

Trump Campaign Conducting Background Checks On Volunteers  —  Donald Trump's campaign informed aspiring volunteers Sunday night that they would have to pass background checks and sign non-disclosure agreements if they wanted serve in the Trump Tower Call Center in Manhattan.

Huckabee: Trump is Clinton's ‘worst nightmare’  —  Hillary Clinton and her allies are underestimating Donald Trump at their own peril, according to Mike Huckabee.  —  The former Arkansas governor was asked about a POLITICO interview with Hillary Clinton's top strategist and pollster Joel Benenson …