The longest serving governor in Texas history reversed course Friday after saying for months that he wasn't interesting in running for the White House. Perry said he will decide on whether to enter the race after the Texas legislature adjourns for the year.

The field of Republicans with presidential ambitions has been slow in forming, and there is no clear front-runner.

Some high-profile Republicans have said they won't run, and President Barack Obama is perceived as a hard candidate to beat.

Perry was speaking at a ceremonial signing event for legislation.