"I want to make sure that Hillary Clinton is the next president of the United States."
Rubio avoided saying directly if he'd trust Clinton with the nuclear codes.
Thomas Perez has been included in talk about Hillary Clinton's running mate.
"Our campaign is organized," Paul Manafort said. "We're ready."
“The American people will be able to make that decision in the fall.”
Sen. Bob Corker called President Obama's comments "sophomoric."
"Make it clear which side you are on," Sanders said Sunday.
Clinton now has a 5-point lead over her likely general election rival.
Rep. Charlie Rangel said he admires Paul Ryan.
"You kind of wonder what kind of glasses some of the Democrats are wearing," Tom Ridge said.
"It's not the safest route forward," Rubio said.
Father's Day has been a difficult holiday for Speaker Paul Ryan, whose dad died years ago.
"There’s a lot of work to be done to turn the campaign in a different direction," he said.
"Donald Trump is an unstable charlatan who is appealing to the worst instincts in people."
Clinton leads in Florida, Colorado, Wisconsin and North Carolina.
"This is a guy who will always put himself first," said Sen. Tim Kaine (D-Va.).
"The differences in policies that me and Donald have had are too big."
"There's no reason to believe that Hillary Clinton's experiences qualify for anything."
Sanders said he did win some "very important victories."
Trump held a 2-point lead in a similar poll just last month.
Carville said many libertarian votes are likely coming as a protest to the major parties.
Kudlow encouraged investors to "ride through" the rocky markets.
Manafort, Gingrich and McConnell will speak about the Trump campaign.
The ad ends: "Donald Trump, too dangerous for America."