Story highlights A pair of retiring GOP lawmakers are asking the RNC to shift funds

Reps. Scott Rigell and Reid Ribble added their names to a request

Washington (CNN) A pair of House Republicans have added their names to a request for their party to stop funding Donald Trump at the top of its ticket.

Virginia Rep. Scott Rigell and Wisconsin Rep. Reid Ribble, both of whom are retiring, added their names to the request, along with former Reps. Bob Inglis, of South Carolina, and Jim Kolbe, of Arizona, said GOP operative Andrew Weinstein. Weinstein, who is coordinating the letter drive, said he now has 110 Republicans who have signed on.

"Evidence has shown that Trump is unable to be disciplined enough to run a viable campaign, so I think it's best to use funds on races that we can win," Ribble told CNN. "Given the likelihood of a Clinton administration, it will be essential that the House and Senate stay in Republican hands to serve as a check on Clinton's agenda."

The open letter to RNC Chairman Reince Priebus, which was first released last week, is part of a growing push inside the party to protect margins inside the House and Senate, amid fears that Trump could drag the entire ticket if he keeps falling in the polls.

"Rather than throwing good money after bad, the RNC should shift its strategy and its resources to convince voters not to give Hillary Clinton the 'blank check' of a Democrat-controlled Congress to advance her big government agenda," the anti-Trump Republicans write in the letter.

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