Rowan County Clerk Kim Davis is refusing to issue same-sex marriage licenses.
Roger Stone also argued that Clinton inappropriately benefited from her foundation.
The New Jersey governor said he supports the RNC's no-third-party pledge.
“I certainly think that Donald Trump should sign a pledge,” she said.
Lawyers for the IT staffer cite the "current political environment."
“People want a hopeful, uplifting message," Bush said.
The vice president's comments came during a trip that fueled speculation about a run.
Ben Kamisar and Jonathan Swan 09/03/15 06:00 AM EDT
Bush donors cheer his attacks but are also concerned about the risks.
The presidential front-runner meets with RNC Chairman Reince Priebus on Thursday.
Warren declined to say whether she discussed a joint 2016 presidential ticket with the vice president.