Romney, McCain: Trump a danger for America's future

— In an extraordinary display of Republican chaos, the party’s most recent presidential nominees, Mitt Romney and John McCain, lambasted current front-runner Donald Trump on Thursday, calling him unfit for office and a danger for the nation and the GOP.

“His is not the temperament of a stable, thoughtful leader,” Romney declared. He called Trump “a phony” who is “playing the American public for suckers,” a man whose “imagination must not be married to real power.”

Hours later, Trump lashed back, calling Romney “a choke artist” who lost to Barack Obama four years ago only because he was such a poor candidate.

The vicious feud marked a near-unprecedented scenario pitting the Republican Party’s most prominent leaders, past and present, against each other as Democrats begin to unite around Hillary Clinton.

Underlying the clash is a bleak reality for panicking Republican officials: Beyond harsh words, there is little they see to stop Trump’s march toward the presidential nomination. Party leaders are poring over complicated delegate math, outlining hazy scenarios for a contested national convention and even flirting with the idea of a third-party effort.

Romney confidant Ron Kaufman, a senior member of the Republican National Committee, openly embraced the possibility of a contested convention: “If that’s the only way to stop Trump, it makes sense,” he told The Associated Press.

In the most notable verbal attacks against Trump to date, Romney and his 2012 running mate, House Speaker Paul Ryan, urged voters in the strongest terms to shun the former reality television star for the good of country and party.

The GOP’s 2008 nominee, Arizona Sen. McCain, joined in, raising “many concerns about Mr. Trump’s uninformed and indeed dangerous statements on national security issues.” That echoes the worries of dozens of leading conservative defense and foreign policy officials.

As Kaufman suggested, Romney embraced what might seem a long-shot approach to deny Trump the delegates necessary to secure the nomination, though he did not call on Republicans to unify behind a single alternative.

“Given the current delegate selection process, this means that I would vote for Marco Rubio in Florida, for John Kasich in Ohio and for Ted Cruz or whichever one of the other two contenders has the best chance of beating Mr. Trump in a given state,” Romney said.

Another idea rumbling through power corridors in Washington was the prospect of a late third-party candidate to represent more mainstream conservatives.

Kaufman said third-party talk may be swirling around Romney, but he laughed it off. “It’s not happening,” he said.

Former Texas Gov. Rick Perry has been approached by “a mixture of people” about being part of a third-party bid, said Jeff Miller, who managed Perry’s failed GOP presidential campaign. But Miller said Perry found the idea “ludicrous.”

Suggesting that Romney may continue to have 2016 ambitions of his own, Trump said the 2012 nominee had “chickened out” earlier when he understood he’d be going up against the billionaire businessman.

“He doesn’t have what it takes to be president,” Trump said at a Portland, Maine, rally. “I made so much more money than Mitt.”

Romney’s views are irrelevant, he said. “Look, Mitt is a failed candidate.”

The back-and-forth came as the Republican candidates prepared for their first post-Super Tuesday debate, Thursday night in Detroit.

Four years ago, Romney and Trump stood side by side in Las Vegas, with Trump saying it was a “real honor and privilege” to endorse Romney’s White House bid. Romney at the time praised Trump’s ability to “understand how our economy works and to create jobs for the American people.”

On Thursday, Trump said Romney “was begging me” for an endorsement that year.

“I could have said, ‘Mitt, drop to your knees.’ He would have dropped to his knees,” Trump said.

Earlier Thursday, in Utah, Romney assailed Trump’s temperament, his business acumen and his ability to keep America safe.

“If we Republicans choose Donald Trump as our nominee, the prospects for a safe and prosperous future are greatly diminished,” he said.

During his Capitol Hill press conference, Ryan dismissed comments Trump made this week that if the Wisconsin Republican didn’t get along with him, Ryan would “pay a big price.”

“I just laughed out loud,” Ryan told reporters. “Sometimes, reality is stranger than fiction around here these days.”

The speaker added that “conservatism is being disfigured” by some of Trump’s ideas and statements.

Voters have not so far responded to such warnings.

Trump padded his delegate lead with victories in seven Super Tuesday contests, with Cruz claiming three states and Florida Sen. Rubio picking up his first victory of the 2016 race.

Still, the front-runner is not yet on track to claim the nomination before the party’s national gathering in July, according to an Associated Press delegate count. He has won 46 percent of the delegates awarded so far, and he would have to increase that to 51 percent in the remaining primaries.

A win for Rubio on March 15 in his home state of Florida could raise questions about Trump’s strength, as could a win for Kasich, Ohio’s governor, on his home turf.

The GOP mayhem contrasts sharply with a clearer picture on the Democratic side, where Clinton is drawing broad support from voters and her party’s leaders. Rival Sen. Bernie Sanders has vowed to keep up his fight, though his path to the nomination has become exceedingly narrow.

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Peoples reported from Detroit. Associated Press writers Kathleen Ronayne in Detroit, David Sharp in Portland, Maine, and Julie Pace, Kathleen Hennessey, Andrew Taylor, Julie Bykowicz, Stephen Ohlemacher, Alan Fram, and Donna Cassata contributed to this report from Washington.