The GOP nominee has proposed a stricter lobbying ban on lawmakers.
President Obama will endorse 150 Democratic candidates in state races across 20 states next week, Politico reports.
The GOP strategist said he has never seen a campaign with "less discipline" than Trump's.
"That's the challenge that we have going forward."
"It's just unbelievable," Jan Brewer said.
"We're a little bit busy over here."
"What he is saying is he wants to reserve all options," Priebus said.
"My father will accept it 100 percent if it's fair, if it's fair."
Clinton leads Trump in Florida, while the GOP nominee has a slight edge in Texas.