First lady Michelle Obama, who dusted off her campaign playbook in 2010 to help Democrats keep the Senate, said Friday that while 2012 is "a long time away," she'll be ready when it's time to gear up for her husband's re-election campaign.

"Whenever it's time to campaign, and they tap me on the shoulder, I'll be right there. But until then, we've got some great initiatives," she said in an interview on ABC's Good Morning America.

"I am excited about what we are going to be doing with military families in the coming year," she said. "We've got a lot of work to do and I'm rolling up my sleeves to get that work done and we'll cross that other bridge when we get there."