Source: REUTERS
Chief rivals to U.S. Republican presidential front-runner Donald Trump assailed him for shifting positions on the issues at a debate, but said in the end they would reluctantly support him if he were their party's nominee.
Under questioning by Fox News Channel moderators on Thursday, U.S. Senators Marco Rubio of Florida and Ted Cruz of Texas and Ohio Governor John Kasich made the promise despite efforts by party elders to build an anti-Trump coalition of Republican voters to pick someone other than the incendiary New York billionaire.
Hours earlier 2012 Republican nominee Mitt Romney in a speech blasted Trump, a former reality TV show host, as an unelectable fraud whose nomination would ensure victory for Democratic front-runner Hillary Clinton in the Nov. 8 election to succeed Democratic President Barack Obama.
Tempers escalated quickly at the two-hour debate and, as in previous encounters, the battle descended into schoolyard taunts between Trump, Rubio and Cruz with accusations of lying and even a reference to male genitalia.



