Jonathan Martin

While Ryan has repeatedly cited his desire to unify his party and to reject the nasty tone of the Republican primary campaign, he appears to have complex motivations. He plays down talk of a 2020 run for the White House, but how Ryan manages Trump over the next six months will play a major role in shaping Ryan’s future.

By seizing the Republican presidential nomination for Donald Trump on Tuesday night, he and his millions of supporters completed what had seemed unimaginable: a hostile takeover of one of America’s two major political parties.

Ted Cruz dropped out of the 2016 race Tuesday night, removing the last major hurdle in Donald Trump's quest to become the Republican nominee for president.

The temporary alliance between Sen. Ted Cruz and Gov. John Kasich of Ohio, formed to deny Donald Trump the Republican presidential nomination, was already in danger of fraying to the point of irrelevance, only hours after it was announced to great fanfare.

Sen. Ted Cruz and Gov. John Kasich of Ohio have agreed to coordinate in future primary contests in a last-ditch effort to deny Donald Trump the Republican presidential nomination.

Donald Trump and his allies are engaged in an aggressive effort to undermine the Republican nominating process by framing it as rigged and corrupt, hoping to compensate for organizational deficiencies that have left Trump with an increasingly precarious path to the nomination.

After 11 adversarial debates, the two chief antagonists to Donald Trump largely abandoned their strategy of brutally attacking him, choosing instead to project gravitas and champion conservative positions on trade, jobs and Israel.

Bernie Sanders breathed new life into his long-shot White House bid with a crucial win in Michigan's primary over Hillary Clinton. Republican Donald Trump swept to victory in both Michigan and Mississippi.

Sen. Ted Cruz scored decisive wins in the Kansas and Maine caucuses Saturday, demonstrating his enduring appeal among conservatives as he tried to reel in Donald J. Trump’s significant lead in the Republican presidential race.

Sens. Marco Rubio and Ted Cruz, fighting for their political lives, relentlessly demeaned and denounced Donald Trump at Thursday’s debate, all but pleading with Republicans to reconsider nominating a candidate with a long history of business failures, deep ties to the Democratic Party and a taste for personal insults.

Alarmed by Donald J. Trump’s victories in seven states on Super Tuesday, Republicans desperate to sink his presidential bid are moving to battle him on two fronts.

The most consequential night of voting so far in the presidential campaign crystallized, in jarring and powerful fashion, the remarkably divergent fortunes of the two major parties vying for the White House.

Voters in 12 states go to the polls Tuesday as Donald Trump and Hillary Clinton, who have had the most success in the early nominating contests, look to extend their delegate leads over their nearest rivals.

Donald Trump and Sen. Bernie Sanders of Vermont rocked the U.S. political establishment Tuesday night, harnessing working-class fury to surge to commanding victories in a New Hampshire primary that drew energetic turnout across the state.

Bill Clinton uncorked an extended attack on Sen. Bernie Sanders on Sunday, harshly criticizing Sanders and his supporters for what he described as inaccurate and “sexist” attacks on Hillary Clinton.