In a fundraising email sent Sunday, former Pennsylvanian Sen. Rick Santorum warned that social conservatives were being pushed out of the Republican Party.

The former GOP presidential candidate said he had a three point plan to prevent the Republican Party from abandoning social conservatives and destroying itself. His plan consisted of mobilizing "pro-family conservatives," defunding Planned Parenthood, and launching a media blitz to "refut[e] the lies and half-truths that our detractors in the GOP are spreading about us."

"[W]e are going to push Republican congressional leaders to defund the monstrosity that is Planned Parenthood," Santorum explained. "Too many in the GOP want to ignore the millions of innocent lives that have been extinguished by this vile organization. Defunding Planned Parenthood is a winning issue. The polls prove it."

Republicans in Congress have repeatedly failed to pass legislation that would prohibit Planned Parenthood or any other abortion provider from receiving federal funding through Title X of the Public Health Service Act. Title X funds already cannot be used for abortion services, but pro-life Republicans have argued that funding to Planned Parenthood was "fungible" because it could be used to pay for expenses like overhead operational costs.

"The people we are fighting are backed by the very wealthiest donors in the country," Santorum added. "They don't understand or care about the values of heartland Americans. Their values aren't ours. And they want to 'modernize' the GOP and push us out of the Republican Party."

Santorum founded the group Patriot Voices after his failed presidential bid in 2012.