Sanders Acknowledges It 'Doesn't Appear' He'll Win Nomination, Marco Rubio Running for Re-Election After All, Cleveland Celebrates a Win: P.M. Links

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  MARC GOLUB/POLARIS

  Donald Trump is trying to get back on message, calling Hillary Clinton a "world-class liar." Bernie Sanders acknowledges it "doesn't appear" he'll be the Democratic nominee, while 18 percent of his supporters say they'll vote for Gary Johnson.

• House Democrats, led by former civil rights leader Rep. John Lewis (Ga.) are holding a sit-in in Congress demanding unspecificed gun control legislation.
• Former House Speaker Dennis Hastert reported to prison today for a 15-month sentence related to paying hush money to victims he molested.
• Marco Rubio says he's running for re-election to the Senate after all. Former rival presidential candidate and fellow senator Ted Cruz said he's "glad" to endorse him.
• Lightning in India killed at least 90 people.
• Cleveland celebrates the city's first sports championship since 1964.