They are the lawyers who have been tapped by the Obama and Romney teams to navigate any legal challenges to voting procedures or results in a tight contest that could dredge up memories of the disputed 2000 election that was settled by the U.S. Supreme Court.

Leading Romney's team is Benjamin Ginsberg, chief legal counsel for George W. Bush's presidential campaigns in 2000 and 2004.

Obama has turned to Robert Bauer, a past White House counsel who has spoken out against Republican-led efforts to alter voting laws in states including Ohio, a politically divided state that could determine who wins the November 6 election.

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