“I need my friends on the Republican side of the aisle to help us," he said.
"He is basically selling fear and prejudice," Graham said.
“I would be part of a coalition and I would take them down,” Kasich said.
Planned Parenthood President Cecile Richards called the hidden-camera footage "sensationalized."
“I didn’t have a confrontation [with Black Lives Matter],” Sanders said.
"I don't understand how she can skate by," Paul said.
“It's as serious, if not more serious a threat, than al Qaeda,” Lynch said.
"Of course she's engaged in a cover up," the GOP presidential candidate said.
Most Republicans want him to stay in the race, according to the CNN/ORC poll.
Perry called Trump's criticism of Sen. John McCain "offensive."
The senator said the deal was made possible by changes in Iran's leadership.
“This is a constant battle," Sen. Dianne Feinstein said.
Hillary Clinton and ISIS also shared in the Sunday morning spotlight.
"People are outraged by this," the GOP presidential candidate said.
"That never should have happened," Jindal said.
"I think we're still doing quite well," Paul said of his own campaign.
She said training in de-escalating incidents has been an important part of debate.
"I've had to live in the real world and deal with real-world issues," he said.
The turnaround follows an interview in The Hill in which he threatened a third-party run.
"I don’t mean Mexico, they come from all over," Trump added.
Discussions also turned to Donald Trump and the Chattanooga shootings.
"Iran is a terror-sponsoring, anti-American, outlaw regime,” Sen. Tom Cotton said.
“It’s so much better than the alternative,” David Cameron added.
Trump said his opponents are upset that he is leading in the polls.