WASHINGTON (CNN) - Hillary Clinton isn't the only White House hopeful to barnstorm Iowa with a former president this year.
Former TV President Josiah Bartlet, also known as actor Martin Sheen, is set to hit the trail with Bill Richardson this weekend. Sheen announced his support for Richardson earlier this month, hailing the New Mexico governor as "ready for prime time."
Sheen is no stranger to the White House - at least, not the Hollywood version. He has played the President of the United States at least four times: in addition to his run on The West Wing, Sheen played the commander-in-chief in the 1983 mini-series Kennedy, the 1987 TV movie Medusa's Child, and the 1983 movie The Dead Zone.
"I am looking forward to Martin showing me around the White House, and I hope I can serve as many terms in the White House as his characters have," said Richardson.
But it's unclear whether Sheen's endorsement will pay off at the polls. In 2004, when he was a TV "sitting president," Sheen campaigned for Howard Dean - the onetime Democratic frontrunner whose campaign quickly fizzled when the primary season began.
UPDATE: More than one member of the Bartlet administration is set to campaign in Iowa this weekend. Richard Schiff, Bartlet's hardened Communications Director Toby Ziegler on the show, will campaign with Democrat Joe Biden, the Delaware senator's campaign announced.
“The West Wing inspired its audience to seek the kind of presidential leadership that is based on experience, judgment, wisdom, and conscience,” Schiff said.
"Iowa, and America, need Joe Biden because he is ready to lead from Day One and in the high-stakes world we live in, there are no re-takes.”
- CNN Ticker Producer Alexander Mooney