Republican Members of the Congressional Pro-Life Caucus warned like-minded Democrats that a White House executive order to prohibit abortion from being covered in the Senate health care reform bill would not stop federal funding of the procedure.

The White House said on Sunday that President Barack Obama plans to issue an executive order ensuring no taxpayer funds are used to fund abortions.

On Sunday afternoon, Rep. Bart Stupak (D-Mich.) and several other anti-abortion-rights Democrats announced their support the health care reform overhaul after they reached a deal with the White House and Democratic leaders on abortion — a move that all but assured the bill would pass the House on later on Sunday.

Stupak and several other anti-abortion rights Democrats had initially pledged to oppose a bill that did not include language that explicitly barred abortion funding.

Republicans expressed their disappointment with their Democratic colleagues’ decision to vote in favor of the overhaul, and asked that they reconsider their “yes” vote.

“The bottom line is that unborn children and mothers will be killed by abortion in larger number as the direct result of this bill being enacted into law,” Rep. Chris Smith (R-N.J.) said.

House Republican Conference Chairman Mike Pence (Ind.) urged those Democrats to “reject this political ploy that is the executive order and stand with us and we will stand with you to ensure that any heath care legislation that contains the historic protections of the Hyde amendment.”

Rep. Jean Schmidt (R-Ohio) said the executive order was “not worth the paper it is printed on.”

“It is not the law of the land and it can be rescinded in the blink of an eye by the drop of the president’s pen.”