But he predicted a vaccine is within reach.
Clinton, Sanders and Trump each appear on three or more shows this week.
“And if this means I lose an election, that’s fine," he said.
Cruz said the governor's family makes "a ton of money" lobbying on ethanol.
“We have come a long, long way,” he said on CNN.
She accused Republicans of using the email scandal to try to “beat up on me.”
"What I didn’t know is they’d be using it for private aircraft and things like that."
The Texas senator said it was hypocritical for Trump to attack him.
"We are taking on the establishment," he said.
"I think we have a good chance of winning Iowa. I'd like to.”
"I believe 2016 will be a national security election," John Bolton said.
Clinton, Sanders, Trump, Cruz and Rubio all appear on shows this week.
“This is in no way like a crime,” Carville said.
Trump said Denver quarterback Peyton Manning is a "very, very good guy."
Top Democratic and Republican candidates blanketed the Sunday shows.
"Now all the Republican candidates are shooting at me. That reflects a change in the race."
Pelosi said Democrats aren't "running on any platform of raising taxes."
“I mean, look, Ted is a liar,” Trump said. “That’s why nobody likes him."
Rubio blasted the notion that Cruz is the "only conservative" in the race.
"No matter what he says, I like Donald."
Rubio said it is “strange” that Cruz has targeted him with "disingenuous attacks."
Trump predicted that voters' anxiety will fade “once they know me.”
Alphonse D’Amato says he sees similarities between the two.
"The debate was not as exciting as what we did."