“Those numbers certainly don’t jump out at you,” said one Republican strategist not affiliated with any of the campaigns. “Look, say what you want about Obama, but the guy can raise money. I just don’t know if any of these candidates will inspire waves of people to write that check. I hope I’m wrong.”

In addition to the roughly $20 million in cash, a super-PAC recently formed by Romney supporters will report $10 million, campaign aides say.

By comparison, Obama’s campaign is banking on $60 million in donations to his Victory Fund, coordinated with the Democratic National Committee. Many predict that Obama will ultimately raise more than $1 billion over the course of the campaign.