The Democratic Party top brass including Chairman Howard Dean, Speaker Nancy Pelosi, said Thursday that they would call on the uncommitted delegates to choose their respective sides.

And, Sen. Barack Obama, who already leads Sen. Hillary Clinton by little less than 50 superdelegates in delegate count, picked up one more superdelegate - Gail Rasmussen from Oregon.

The Democratic member of United States House of Representatives, representing West Virginia, Alan B. Mollohan also announced his endorsement for Obama on Thursday.

In a statement, Mollohan said, "While Sen. Hillary Clinton has proved herself an untiring advocate of issues important to West Virginians, Sen. Obama has the particular combination of intelligence, moral strength, and leadership abilities that our state and our country need today.”

Clinton soundly defeated Obama in West Virginia's presidential primary on May 13, but the state's members of Congress are superdelegates, who are not bound by how state residents voted.

Rockefeller and Rahall endorsed Obama in March, while Byrd waited until a week after the primary. Three West Virginia superdelegates, all Democratic Party officials, have endorsed Clinton. Three others, including Gov. Joe Manchin, have not endorsed anyone.