"I want to make sure that Hillary Clinton is the next president of the United States."
"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."
Thomas Perez has been included in talk about Hillary Clinton's running mate.
Clinton leads in Florida, Colorado, Wisconsin and North Carolina.
"Our campaign is organized," Paul Manafort said. "We're ready."
"This is a guy who will always put himself first," said Sen. Tim Kaine (D-Va.).
Ben Kamisar 06/26/16 10:30 AM EDT
All other Republican candidates have dropped out of the Senate race to make way for Rubio.
“The American people will be able to make that decision in the fall.”
"The differences in policies that me and Donald have had are too big."