“Evidence for this statement?”
http://swampland.time.com/2012/02/14/rick-santorum-wants-to-fight-the-dangers-of-contraception/
From your source:
In particular, he said he would “get rid of any idea that you have to have abortion coverage or contraceptive coverage” as a government policy.
That’s it. Exactly what you said you support - you said you support Santorum eliminating any mandate for contraception.