WASHINGTON, D.C., April 18, 2012, (LifeSiteNews.com) – While many pro-life organizations have coalesced around Mitt Romney as the presumptive Republican presidential candidate, some prominent pro-life, pro-family politicians have said they want to see who he chooses for vice president before pledging their support.

Most significant among these is former rival Rick Santorum, who dropped out of the race last Tuesday. Monday night, he held a half-hour conference call with 4,000 participants, which ended without an endorsement.

A prominent Catholic political organization is following his lead.

“Governor Romney’s choice of a running mate will be a decisive moment in his candidacy – it will signal the kind of appointments a President Romney would make to his cabinet and the Supreme Court,” said Catholic Advocate Chairman Deal Hudson in a statement e-mailed to LifeSiteNews.com. “Catholics and all people of faith need to be assured that they have a real choice between candidates on the crucial issues of life, marriage, religious liberty, and economic policies that will help to alleviate poverty.”

“In spite of the eagerness to see the primary process come to an end, we believe there is still a critical decision yet to be made by the presumptive nominee,” added Advocate President Matt Smith.

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Baptist leader Dr. Richard Land has suggested choosing a running-mate such as Marco Rubio, Mike Huckabee, Bob McDonnell, or Bobby Jindal would “not only solidify the [Republican Party] base but would also reach out to a lot of independents.”

Social conservatives, including former presidential candidate Gary Bauer, have said the Romney campaign could take a number of steps to reassure his party’s more conservative members.

“To unify the Republican Party, Romney must do more than be the Anti-Obama,” Gary Bauer wrote in Human Events on Tuesday. “He must rally all those Non-Romney voters and the millions more they represent.”

“Romney must pick an across-the-board conservative as his running mate and make a strong defense of conservative values during his acceptance speech at the convention.” Bauer also suggested Romney give Santorum a prime time speaking slot at the Republican convention in Tampa, run an aggressive campaign against President Obama, and allow the media to see his “rock solid family life.”

Earlier today, Governor Romney told Laura Ingraham he would “clean house” following the Secret Service prostitution scandal. On Tuesday, he told Breitbart TV the Obama administration and the media had formed “a vast left-wing conspiracy” against him.

“Many in the media are inclined to do the president’s bidding,” he said.