David Welna David Welna is NPR's national security correspondent.
Frist Defies Bush on Stem-Cell Funding
Frist Breaks with Bush on Stem-Cell Legislation
Will John Bolton Get a Recess Appointment?
Democrats Press for Roberts' Reagan-Era Papers
Defense Bill Shelved over Detainee Provision
Democrats Push For Release of Roberts Papers
High Court Nominee Roberts Visits Capitol Hill
Reaction in Senate to Supreme Court Nominee
Senators Spar over Karl Rove
Bush, Lawmakers Discuss Court Vacancy
Bush, Senators Confer on High Court Vacancy
Top CPB Officials Address Senate Panel
Democrats Prepare to Vet a Supreme Hopeful
Senate Awaits Bush High Court Nominee
Senate Gears Up for Possible Court Battle