Texas Gov. Rick Perry, the longest-serving governor in the state¡¯s history, announced Monday that he will not seek re-election in 2014 amid speculation that he will run again for the Republican presidential nomination in 2016.

¡°I remain excited about the future and the challenges ahead but the time has come to pass on the mantle of leadership,¡± Perry said in San Antonio. ¡°Today I am announcing I will not seek re-election as governor of Texas.¡±

He said he will continue actively as governor until his term expires but made no explicit statement about what might come after that. ¡°Any future considerations I will announce in due time,¡± he said.