Former White House candidate Newt Gingrich says Mitt Romney has "earned the right to represent the Republican Party" against President Barack Obama and that he'll help Romney's campaign in any way he can.

Gingrich says Romney has "fought his way to the nomination" and that "nobody gave him an inch."

Gingrich also tells CNN's "State of the Union" that he's discussed speaking at events on Romney's behalf.

The former House speaker laughs off any suggestion that he would try to be Romney's running mate, noting that the campaign would probably prefer someone younger and hinting at his reputation as a domineering leader:

"Oh, I can't imagine that. ... Would you pick me to be No. 2?" he asked in the TV interview.