He added that the GOP should avoid a divisive fight for the presidential nomination.
CBS secured hidden camerage footage of National Republican Campaign Committee headquarters.
Mary Pat Christie appeared to roll her eyes at Trump's "woman card" comment about Clinton.
Republicans are lining up to target Democratic Sen. Michael Bennet.
Trump is delivering the keynote speech in San Francisco on Friday afternoon.
The survey is at odds with other recent polls showing Trump with the lead.
"We don't need any more of these personal, little slights," Kay Bailey Hutchison said.
“I would never vote for Ted Cruz,” former Sen. Judd Gregg (R-N.H.) said.
The RNC chairman calls on Republicans to "honor God" with their words.
Clinton said she can deal with "temper tantrums or their bullying," referring to Trump.