(AP) -- Donald Trump introduced Indiana Gov. Mike Pence as his running mate on Saturday, calling him "my partner in this campaign" and his first and best choice to join him on a winning Republican presidential ticket.

Skipping the traditional massive rally in favor of a low-key announcement in a Manhattan hotel, Trump tried to draw a sharp contrast between Pence, a soft-spoken conservative, and Hillary Clinton, the Democratic presidential candidate. In fact, he spent about as much time lambasting Clinton as praising Pence, declaring she had led President Barack Obama "down a horrible path" abroad.

He said Pence would stand up to America's enemies and that he and the governor represent "the law-and-order candidates" at home.

"What a difference between crooked Hillary Clinton and Mike Pence," Trump said. He added: "He's a solid, solid person."

Pence, standing alone in front of American flags, hewed closely to the populist themes that Trump has voiced on the campaign trail, describing himself as "really just a small-town boy." He praised Trump effusively as "a good man," a fighter, a legendary businessman and a patriotic American.

"The American people are tired," Pence said. "We're tired of being told that this is as good as it gets. We're tired of having politicians in both parties in Washington, D.C., telling us we'll get to those problems tomorrow."

The joint appearance was intended to catapult the party toward a successful and unified Republican National Convention, which kicks off in Cleveland on Monday. Trump conceded that one of the reasons he'd selected Pence was to promote unity within the Republican Party, left deeply fractured by Trump's ascent.

"So many people have said 'party unity,' because I'm an outsider," Trump said. "I want to be an outsider."

Yet the announcement lacked much of the stagecraft typically associated with the public unveiling of a running mate, one of the most significant moments in a presidential campaign's control.

The two did not walk out together, appearing at each other's side only after Trump delivered a rambling 28-minute address that included a plug for his new hotel in Washington. And when they shook hands, with the political world watching, it was only for a few seconds before Trump left the podium.

Pence, whose calm demeanor forms a marked counterpoint to the fiery Trump, was chosen in part to ease concerns in some GOP corners about the billionaire's impulsive style and lack of political experience. A steady conservative with extensive governing experience, Pence may also serve to reassure Republicans who are skeptical about Trump's conservative bona fides.

Brandishing his running mate's job-creating credentials, Trump ticked through a list of statistics he said showed how Pence had pulled Indiana out of economic recessions: an unemployment rate that fell to less than 5 percent on his watch, an uptick in the labor force and a decrease in Indiana residents on unemployment insurance.

"This is the primary reason I wanted Mike -- other than that he looks very good, other than he's got an incredible family, and incredible wife," Trump said. He predicted that Pence would have won re-election as governor, were he not running for vice president.

The Trump-Pence event offered Americans the first glimpse at what the 2016 Republican presidential ticket will look like, barring the unexpected. Just as Trump was settling on Pence, Republicans gathering in Cleveland essentially quelled the movement to oust Trump at the convention, all but assuring he'll be the GOP nominee.

"They got crushed," Trump said. "And they got crushed immediately, because people want what we're saying to happen."

The Indiana governor is well-regarded by evangelical Christians, particularly after signing a law that critics said would allow businesses to deny service to gay people for religious reasons. But his hardline ideology is also at odds with Trump, who has largely avoided wading into social issues.

Clinton's team was already painting Pence's conservative social viewpoints as out of step with the mainstream. Her campaign also seized on Trump's chaotic process for selecting and announcing his pick, painting Trump in a web video released Saturday as "Always divisive. Not so decisive."

Trump's formal announcement capped a frenzied few days in the presidential campaign, as early reports that Trump has settled on Pence threw speculation into overdrive. After days of his aides saying he hadn't made a final decision, the billionaire called Pence Thursday afternoon to offer him the job, but hours later postponed their first appearance after a truck attack killed 84 people in Nice, France.

Trump had spent weeks vetting vice presidential contenders, including former House Speaker Newt Gingrich and New Jersey Gov. Chris Christie, and only zeroed in on Pence in recent days. Pence, meanwhile, had faced a Friday deadline to withdraw from his re-election race for governor so he could run for vice president; his aides filed the paperwork about an hour before the cutoff.

In choosing Pence, Trump appeared to be looking past their numerous policy differences.

The Indiana governor has been a longtime advocate of trade deals such as NAFTA and the Trans-Pacific Partnership, both aggressively opposed by Trump. He's been critical of Trump's proposed temporary ban on foreign Muslims entering the U.S., calling the idea "offensive and unconstitutional." Pence also endorsed Sen. Ted Cruz instead of Trump ahead of Indiana's presidential primary.

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Associated Press writers Brian Slodysko in Indianapolis, Julie Pace, Julie Bykowicz and Ken Thomas in Washington, and Alan Fram, Josh Lederman and Steve Peoples in Cleveland contributed to this report.