(CNN) - A trio of Missouri surrogates for Mitt Romney took aim at Rick Santorum on Tuesday, saying the former Pennsylvania senator has misled voters on his fiscal conservative record. "He certainly has been outspoken on social issues, and we honor his record in that regard. But when you get outside those issues…his record shows he's been in the liberal wing of the Republican Party," former Sen. Jim Talent said on a call with reporters. -snip- Also on the call was Rep. Billy Long of Missouri and State Auditor Tom Schweich, both of whom praised Romney's credentials in the private...