He decided against running for the 1996 Republican presidential nomination, citing health problems related to phlebitis.

Around the same time, Thompson announced he would leave the show to seek the 2008 Republican presidential nomination.

Within a year, he decided to seek the 2000 Republican presidential nomination.

There are five major candidates and several lesser ones seeking the two Republican nominations.

Fourth, there is no viable orthodox conservative candidate for the 2008 Republican presidential nomination.

Lowden was defeated, but would later serve two terms in the office and be a major contender for the 1920 Republican presidential nomination.

His visibility propelled him to the governorship in 1942 and the 1944 Republican presidential nomination.

Herman Cain has dropped out of the race for Republican presidential nomination.

Herman Cain has suspended his campaign for Republican presidential nomination.

Between 2005 and 2007, Gingrich expressed interest in running for the 2008 Republican presidential nomination.