Ted Cruz Is Heckled Again the Morning After His Non-Endorsement

Mr. Cruz talked down people taunting him at a fractious breakfast forum after his performance onstage upended the Republican National Convention.

Chris Christie Lost Out on the Job He Wanted. And His Bad Year Got Worse.

The New Jersey governor, who hoped to be Donald J. Trump’s running mate, saw his political fortunes crash after backing Mr. Trump in the presidential race.

Bernie Sanders Endorses Hillary Clinton, Hoping to Unify Democrats

Whether Mrs. Clinton can also win over the 13 million Sanders voters will be one of her biggest challenges at the party’s convention and in the weeks ahead.

Feature: Can the G.O.P. Senate Majority Survive Donald Trump?

The party’s most vulnerable down-ticket candidates try to escape the shadow of a presidential campaign that is imperiling their prospects in November.

Sanders Endorses Clinton

Bernie Sanders endorsed Hillary Clinton in Portsmouth, N.H.

Feature: Will Trump Swallow the G.O.P. Whole?

Inside the identity crisis roiling the Republican Party.