On Monday press call, Santorum tells reporters Romney is “not someone you can trust on the issue of big government.”

Pennsylvanian: “During the heart of the debate on ObamaCare, Mitt Romney stepped forward in 2009 and advocated for an individual mandate…. People are starting to realize that what you have with Gov. Romney is someone who is not a genuine article.”

Romney spox Andrea Saul preempts Santo call with emailed statement:

“Rick Santorum has a habit of creating distortions, exaggerations and falsehoods about Mitt Romney’s record.”

Listen to the audio from the call above.