The pope's trip is meant to draw attention to the world's neediest people.
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The Arkansas senator repeats his calls for Obama to abandon the talks.
"Jeb Bush once again proves that he is out of touch," Trump says.
Former secretary of State Hillary Clinton is accusing China of stealing massive amounts of government data and warned that the U.S. is at constant risk of cyberattacks from the country.
"They're also trying to hack into...
“If I was leftist, I would love Barack Obama,” Cruz says.
“He has a colorful way of speaking," the Texas senator says.
“Donald Trump does not represent the Republican party,” Perry says.
Huckabee says he "would never besmirch all the people" trying to immigrate to the U.S.
“He’s politicizing America’s national security," Christie says.
Sanders also says rejecting same-sex marriage shouldn't cost groups their tax-exempt status.