In this Jan. 19, 2016, file photo, former Pennsylvania Sen. Rick Santorum meets with voters in Greenfield, Iowa. On Sunday, March 25, 2018, Santorum said students who are rallying for gun control should instead learn CPR to help protect their classmates during a school shooting.
In this Jan. 19, 2016, file photo, former Pennsylvania Sen. Rick Santorum meets with voters in Greenfield, Iowa. On Sunday, March 25, 2018, Santorum said students who are rallying for gun control should instead learn CPR to help protect their classmates during a school shooting. Evan Vucci AP
In this Jan. 19, 2016, file photo, former Pennsylvania Sen. Rick Santorum meets with voters in Greenfield, Iowa. On Sunday, March 25, 2018, Santorum said students who are rallying for gun control should instead learn CPR to help protect their classmates during a school shooting. Evan Vucci AP