WASHINGTON (Reuters) - Former President Jimmy Carter will lead a bipartisan commission to examine problems with the U.S. election system, American University's Center for Democracy and Election Management said on Thursday. Carter, a Democrat whose Carter Center has monitored more than 50 elections around the world, will co-chair the private commission with Republican James Baker, who served as Secretary of State under President George H. W. Bush. Former Senate Minority Leader Tom Daschle, a Democrat who lost his seat in the 2004 election, will also participate. "I am concerned about the state of our electoral system and believe we need...