Kerry

Here we go:

Kerry will try Alito filibuster

Sen. John Kerry will attempt a filibuster to block the nomination of Judge Samuel Alito to the Supreme Court, CNN has learned.

Kerry, in Davos, Switzerland, to attend the World Economic Forum, was marshaling support in phone calls during the day, Democratic sources told CNN.

Sources say Kerry talked to a group of Democratic senators Wednesday, and urged that they join him. He also has the support of fellow Massachusetts Sen. Edward Kennedy.

Some senior Democrats told CNN they are worried that the move could backfire.