Former Pennsylvania Sen. Rick Santorum, Republican
"Congressman Paul Ryan is an outstanding choice as our country's next vice president, and today's announcement demonstrates Gov. Romney's commitment to returning fiscal sanity back to Washington, DC. I have long supported Paul Ryan's fiscal and entitlement reforms to return our country back on a path of fiscal health. At a time when our country is at an economic crossroads, Congressman Ryan's depth of knowledge on how to tackle these challenges is unparalleled. He will serve Gov. Romney and our country well to undo the flawed policies of the last four years."