Santorum says he would rather spend his Saturday sitting at his kitchen table doing his taxes than campaigning in a state where the race for the Republican presidential nomination has become a two-man fight between Newt Gingrich and Mitt Romney.
Santorum was in Philidelphia Friday night, in Washington on Saturday night, and was with his daughter in the hospital on Sunday.
On Monday he returned to campaigning -- in the midwest, not Florida.
Santorum didn't run any ads in Florida, so he was hardly "piling on with Romney". much less for "more than a week".
Now, Santorum did beat Gingrich and Romney in the Florida debate; but you claimed he was "piling on Gingrich" and "non-stop attacking Gingrich". In fact, Santorum was low on money, couldn't run ads, and was a non-entity in Florida. He still pulled significant support, because Gingrich collapsed in the polls, but that wasn't Santorum's fault.
He left Florida early (sorry I thought it was the night before). He might not have run an ad in Florida (I don`t know I don`t live there).
BUT
He would not throw his support behind Gingrich even though he had given up (because it was winner take all and it was clear he couldn`t win), and even though Newt had all the momentum. Those same people were calling for Newt to drop out before Michigan, and continue to do so (hypocrites).
He may not have run ads (as I said I don`t know), but in the debates and in the press he and his supporters continued to repeat Romney`s blatant lies about Newt (ethics charges etc.).