Oshkosh, WI (AP) A second Democrat has entered the race to replace U.S. Rep. Tom Petri. Petri announced earlier this month that he was not running for re-election to the congressional seat in eastern and central Wisconsin. Gary Wetzel, a Ripon retiree, will vie for the Democratic nomination. The 64-year-old Wetzel will run against Winnebago County Executive Mark Harris in the Democratic primary. Wetzel says he doesn't expect to win, but he wants to give voters a choice. Wetzel has a mechanical engineering degree and worked most recently as a substitute teacher. Three Republicans also are running for the seat.