Former Speaker of the House Newt Gingrich announced Thursday he's "exploring" a run for the White House in 2012.

In Atlanta, Gingrich launched a website to raise money and test the support for a presidential bid.

Still, he stopped short of setting up an official exploratory committee, which would have legally made him a candidate.

Gingrich said he believes he has the right values and right policies to make America great again.

In a letter to supporters, he said a possible run for the White House would be an "extraordinary adventure."