NBC Host To Sanders: Your Take On Superdelegates Is A Bit ‘Hypocritical’  —  NBC News host Chuck Todd told Democratic presidential candidate Sen. Bernie Sanders (I-VT) in an interview aired Sunday that his opinon on superdelegates was “a little bit hypocritical.”

Rubio says he apologized to Trump for ‘small hands’ jest  —  Washington (CNN)Marco Rubio apologized privately to Donald Trump in person backstage before a Republican debate for crude remarks he made about Trump's appearance, the Florida senator said in an exclusive CNN interview.

VIDEO: Gorilla grabs child who's gotten into habitat  —  Gorilla shot dead after handling boy  —  The Cincinnati Zoo was packed with visitors this holiday weekend when a 4-year-old boy crawled through a railing and fell into a moat in a gorilla habitat.  —  A family trip to the zoo Saturday …

The Daily Trump  —  People will look back on this era in our history, to see what was known about Donald Trump while Americans were deciding whether to choose him as president.  Here's a running chronicle from James Fallows on the ways in which Trump has been unpresidential in an unprecedented way.

Gary Johnson Wins Libertarian Nomination for President  —  Former New Mexico Gov. Gary Johnson has won the Libertarian nomination for president.  —  Hoping to emerge as a viable contender against the two major parties' nominees in the general election, Johnson says he aims to tap …

Why You Will Marry the Wrong Person  —  IT'S one of the things we are most afraid might happen to us.  We go to great lengths to avoid it.  And yet we do it all the same: We marry the wrong person.  —  Partly, it's because we have a bewildering array of problems that emerge when we try to get close to others.

Donald Trump keeps giving Republicans major cause for alarm — because he's still attacking them  —  He said he wouldn't say it.  —  But Donald Trump seemingly couldn't resist.  —  “I wonder if I could say — you know, remember lyin'.  Lyin'.  I won't say ‘Lyin’ Ted' — I refuse to say it …

First look at Navy's experimental railgun that can fire at 4,500 miles an hour  —  A warning siren bellowed through the concrete bunker of a top-secret Naval facility where U.S. military engineers prepared to demonstrate a weapon for which there is little defense.

Clinton has been burying emails since she was First Lady  —  More On:  —  While the State Department's own internal probe found former Secretary Hillary Clinton violated federal recordkeeping laws, it's not the first time she and her top aides shielded her e-mail from public disclosure while serving in a government position.

LBJ's Ad Men: Here's How Clinton Can Beat Trump  —  It's rare for a political ad to go viral, and rarer yet for an ad 52 years old, but that's just what happened in March with “Confessions of a Republican.”  The theme of the spot from Lyndon Johnson's 1964 campaign was eerily contemporary …