FACTBOX: High-profile, uncommitted Democratic superdelegates

(Reuters) - The race for the 2008 Democratic presidential nomination may be settled by the superdelegates, members of Congress and other party insiders who are free to vote for whom they want at the August Democratic presidential nominating convention in Denver.

Fewer than 250 of the 796 superdelegates have yet to endorse either Sen. Hillary Clinton or Sen. Barack Obama. Here are some of the high-profile superdelegates who haven't yet taken a stand on who should be the party's nominee.

* U.S. House of Representatives Speaker Nancy Pelosi of California. She has drawn complaints from some Clinton supporters for saying members of Congress should reflect the will of the people in their districts in deciding who to back.

* U.S. Senate Democratic Leader Harry Reid of Nevada. In a recent interview with National Public Radio, Reid said superdelegates should vote for whoever they want.

* Former Vice President Al Gore, who was the Democrats' failed 2000 presidential candidate; in 2004, Gore backed Howard Dean, who lost the Democratic nomination to John Kerry.

* Former North Carolina Sen. John Edwards, who dropped his Democratic presidential bid earlier this year, has said he will not back a candidate at this point.

* Democratic National Committee Chairman Howard Dean. Like other top DNC officers, party rules require Dean to remain neutral until someone wins the nomination.

* Sen. Joe Biden of Delaware and Rep. Dennis Kucinich of Ohio; both made failed bids for this year's Democratic presidential nomination.

* Former President Jimmy Carter, who while officially uncommitted, has dropped hints that he supports Obama.

* U.S. House Majority Whip James Clyburn of South Carolina and House Democratic Caucus Chairman Rahm Emanuel. Clyburn has been critical of what he describes as Clinton's divisive campaign tactics. Emanuel is in a tough spot. He served in the Clinton White House and, like Obama, is a member of the Illinois congressional delegation.

(Reporting by Thomas Ferraro; editing by David Wiessler and David Alexander)