From the News Tribune (MO):

Matt Gephardt joined fellow cancer survivors for a "Relay for Life" fund-raiser [last] Saturday, walking a few laps around a junior high school running track and displaying a one-track mind focused on boosting his father's presidential campaign.

The 18-hour American Cancer Society walk-a-thon for cancer research and patient programs was in its final hours when Gephardt joined the crowd Saturday morning.