Rick perry withdraws

Texas governor rick perry has withdrawn from the republican presidential race. He went ahead to endorse former house speaker newt gingrich.
The presidential hopeful at a news conference in north charleston, south carolina said there was no "viable path forward".
When mister perry entered the race in august, he briefly shot to the front of the pack before poor debate performances set him back.
His departure leaves four candidates in the republican race with former massachusetts governor mitt romney as the front runner.