Let The Sparks Fly: Republican Debate Begins with Attacks on Donald Trump

The stage is set at the Reagan Presidential Library on September 13, 2015, for the CNN Republican Presidential Candidate Debate. CNN's Jake Tapper will be the moderator for the debate from the Library on the 16th.

WASHINGTON — (CNN) Republican presidential candidates quickly attacked front-runner Donald Trump at tonight’s CNN debate.

“Let’s stop treating Donald Trump like he’s a Republican,” Louisiana Gov. Bobby Jindal said at the beginning of the event at the Ronald Reagan Presidential Library. “He’s not a conservative.”

Former New York Gov. George Pataki followed suit.

“Donald Trump is unfit to be president of the United States,” he said.

The comments came at the first debate of the evening, which included lower-polling candidates. South Carolina Sen. Lindsey Graham and former Pennsylvania Sen. Rick Santorum joined Jindal and Pataki on stage.

The attacks foreshadow the lines Trump can expect at 8 p.m. ET when Trump and 10 other leading Republican candidates face off. Trump, who has dominated the race this summer, is likely to face sustained criticism on multiple fronts and will have to prove he can handle the pressure.

The debate comes at a crucial point in the GOP race, with tensions running high and establishment candidates struggling against their outsider counterparts.

Trump said he might try a different approach at the prime-time debate.

“I could tone it down a little bit when pressed,” he told the Christian Broadcasting Network. “You need a person of tremendous strength, but I think I can tone it down a little bit and I’ll try.”

Trump is suddenly facing stiff competition from retired neurosurgeon Ben Carson, who is surging in the polls. The two, who are most effectively harnessing the desire among many primary voters for an outsider candidate, have sparred over the past week about their faith.

But Trump may face the most intense attacks from Carly Fiorina and Jeb Bush.

Fiorina, whose breakout performance at last month’s debate helped her land a spot in tonight’s prime-time event, is intent on upstaging Trump. Trump has attacked Fiorina’s business record as the CEO of Hewlett-Packard while she has slammed Trump for being light on substance.

Their sparring intensified over the past week after Rolling Stone published an interview with Trump in which he dismissed Fiorina by saying, “Look at that face! Would anyone vote for that?”

Fiorina shot back: “I am proud of every year and every wrinkle.”

Bush may have the most at stake. Despite his $100 million bank account and record as a two-term governor running one of the country’s largest — and most complex — states, Bush is tumbling in the polls.

After a lackluster performance last month, Bush will have to prove that he can turn his troubled campaign around. He’ll do that, in part, by taking on Trump directly after spending much of the summer ignoring his presence.

Bush is already taking a more aggressive stance. In recent interviews and posts on social media, the former Florida governor has repeatedly questioned Trump’s conservative bonafides, slamming the businessman on immigration, health care and taxes.

A new web video released the week from Right to Rise, the pro-Bush, super PAC could preview the type of message he might offer tonight. The video labeled Trump as a candidate “in a very dark place” before presenting Bush as someone who is choosing a “brighter path.”

The-CNN-Wire ™ & © 2015 Cable News Network, Inc., a Time Warner Company. All rights reserved. (Photo: CNN)

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