Bob Smith served in the Senate from 1990-2003. He lost in a primary challenge to John Sununu. John Sununu won the Senate race in 2003 against Jeanne Shaheen. Six years later in 2009, Jeanne Shaheen came back and beat Senator John Sununu. Now Bob Smith will return and run in the Republican primary to run against Senator Jeanne Shaheen for her Senate seat. Scott Brown, former Massachusetts Republican Senator is also considering running for that Senate seat.
In 2004 and 2010 Bob Smith ran for the Senate in Florida. Both times dropping out in the Republican Party primary from low poll numbers.