While the big headline from the new Pew survey has Santorum/Mittens dead heat, here is a figure worth reading:
November, Mitt Romney was beating President Obama among independent voters, 53% to 41%. Now those numbers are upside down: Obama tops Romney among them, 51% to 42%. That's a net 19 point swing of independents in Obama's direction in three months
To go negative or not to go negative against Santorum? That is the question.
