Rubio Helps Romney Most, Pawlenty Least

Nate "The Great" Silver at NYT, after one of his usual exhaustive, perhaps exhausting for some, postings today concludes that weighing all the factors, Marco Rubio would help Romney in the Electoral College race (which is all that counts) more than any other potential Veep pick, with Rob Portamn--who I think will get the nod--coming in second.  Most others barely help at all and guess who actually hurts?  Tim Pawlenty, one of the few whose ratings back home are in the negative category.  Another big drag would be: Rick Santorum.