From Radio Iowa:

“You know, it’s May and I can understand if people didn’t want to start in December or January. I mean, in the past they’ve said, ‘That’s too early,’” Pawlenty said this afternoon during an interview with Radio Iowa. “Well, you know, it’s time.”
Pawlenty listed a laundry list of domestic concerns — from unemployment to rising gas prices — and argued Republican candidates need to start telling voters how they’d tackle those issues if they were elected president.
“It’s going to require that candidates make the case for why Barack Obama should be dismissed from his position and that’s going to require a big effort,” Pawlenty said, “and it needs to start now.”