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			 But Rubio, 44, a U.S. senator from Florida, faces a strong field 
			of establishment rivals in next week's New Hampshire primary after 
			his stronger-than-expected third-place finish in Iowa behind 
			front-runners Ted Cruz, 45, and Donald Trump, 69. 
			 
			"If I am the nominee, we are going to beat Hillary Clinton and it 
			won't be by the flip of a coin," Rubio told supporters in Exeter, 
			New Hampshire, taking a jab at the close Democratic race in Iowa 
			between Clinton and challenger Bernie Sanders, where some precincts 
			were decided on a coin flip. 
			 
			Other more mainstream Republicans including former Florida Governor 
			Jeb Bush, Ohio Governor John Kasich and New Jersey Governor Chris 
			Christie, are expected to do better in New Hampshire than in Iowa 
			and vie with Rubio to become the establishment favorite. 
			 
			Cruz and Trump also headed to New Hampshire as the presidential race 
			shifted to the second nominating contest in the state-by-state 
			battle to pick nominees for the Nov. 8 election to replace 
			Democratic President Barack Obama. 
			  Trump told a news conference before a rally in Milford, New 
			Hampshire, that he felt "a tinge" of disappointment at losing to 
			Cruz in Iowa.. The billionaire businessman also picked up an 
			endorsement from former Massachusetts Senator Scott Brown. 
			 
			Cruz told New Hampshire supporters he was like former Republican 
			President Ronald Reagan, urging the state to help ensure his 
			nomination by giving him a win in the Feb. 9 primary. 
			 
			"Every day from now until Election Day here in New Hampshire, I'm 
			going to continue asking for the men and women of New Hampshire to 
			make that same fateful decision yet again so that we can reignite 
			the promise of America," Cruz said. 
			 
			Cruz, a conservative U.S. senator from Texas, beat Trump in Iowa's 
			Republican caucuses with the help of the state's large bloc of 
			evangelical Christians, but he might struggle to finish on top in 
			New Hampshire, where Republican voters have a more secular and 
			libertarian streak. 
			 
			Cruz apologized to rival Ben Carson over an email his campaign sent 
			on Monday night implying Carson was dropping out of the race and his 
			Iowa backers should switch to Cruz. 
			 
			"This was a mistake from our end, and for that I apologize to Dr. 
			Carson," Cruz wrote. 
			 
			The campaign for Carson, who finished fourth in Iowa, said the 
			retired neurosurgeon had accepted Cruz's apology but that the 
			incident was the sort of "dirty trick" politics that Carson was 
			trying to fight. 
			 
			The Democratic presidential contenders, Clinton and Sanders, also 
			headed to New Hampshire after their close duel in Iowa, where the 
			former secretary of state narrowly edged out the insurgent U.S. 
			senator from Vermont. 
			 
			Vermont borders New Hampshire, and that proximity may give Sanders 
			an advantage in next Tuesday's primary. Clinton's razor-thin margin 
			was the smallest in Iowa Democratic caucus history. 
			
			  Concerns about the income gap and economic insecurity have helped 
			Sanders, 74, a self-described democratic socialist who came from far 
			behind in polls to throw a scare into the front-runner in Iowa. 
			 
			Clinton, 68, acknowledged she had to try harder to win younger 
			Democrats, who backed Sanders in Iowa in large numbers. "I’m going 
			to have some work to do to reach out to young voters, maybe 
			first-time voters, who have to make a tough decision,” she told CNN. 
			 
			The two Democrats also renewed a days-old battle over when and where 
			to have more face-to-face debates, and were still talking about 
			potentially meeting in a televised debate on Thursday night in New 
			Hampshire. 
			 
			
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			'HARD SELL?' 
			 
			On the Republican side, U.S. Senator Lindsey Graham of South 
			Carolina, who dropped out of the race in December, said a recent 
			hardening of Rubio's position on immigration and the strength of his 
			anti-abortion stance might cost him. 
			 
			“Running to the right to win Iowa is going to be a hard sell here in 
			New Hampshire,” Graham, a supporter of Bush, told Reuters in Rindge, 
			New Hampshire. 
			 
			The son of Cuban immigrants, Rubio said he was the candidate to 
			unite the Republicans in the November election, when the party hopes 
			to regain the White House after Obama's two four-year terms. 
			 
			"People realized on the Republican side that we cannot afford - this 
			country cannot afford - to lose this election, and that I give the 
			party the best chance not just to unify our party but to grow it," 
			Rubio told ABC's "Good Morning America" from Manchester, New 
			Hampshire. 
			 
			The fluent Spanish speaker hopes to win back some of the Latino vote 
			the party lost in recent years as it toughened its stance on 
			immigration. A foreign policy hawk, Rubio advocates a tough approach 
			to Iran, the Islamic State militant group and other U.S. foes. 
			 
			Iowans who supported Rubio at the caucuses said they responded to 
			his relatively positive message and viewed him as the candidate most 
			likely to beat Clinton should she be the Democratic nominee. 
			 
			Worries about issues such as immigration and terrorism have fueled 
			the campaigns of Trump and Cruz. 
			
			
			  
			
			Christie on Tuesday accused Cruz and Rubio of lacking executive 
			experience for the job of president. 
			 
			“What do they do exactly in the United States Senate? They talk and 
			they talk. They are not responsible for doing anything,” Christie 
			said at his campaign's New Hampshire headquarters in Bedford. 
			 
			Opinion polls of Republicans show Trump leading nationally and in 
			New Hampshire. But the state has a long tradition of bucking trends 
			in presidential primaries. 
			 
			Trump, the outspoken real estate magnate who dominated the 
			Republican race for months, broke an unusual silence of more than 12 
			hours on Twitter after his defeat in Iowa. 
			 
			"Because I was told I could not do well in Iowa, I spent very little 
			there - a fraction of Cruz & Rubio. Came in a strong second. Great 
			honor," he wrote on Twitter on Tuesday where he has regularly posted 
			scathing criticism of his opponents. 
			 
			(Additional reporting by Doina Chiacu, Susan Heavey, Mohammed 
			Zargham and Megan Cassella in Washington, Ginger Gibson and John 
			Whitesides in Iowa; Writing by Alistair Bell and John Whitesides; 
			Editing by Frances Kerry, Howard Goller and Peter Cooney) 
			
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