David Welna David Welna is NPR's national security correspondent.
Battles over Party Nominees Are Old Hat, Bad News
Petraeus Hints at Deeper Iraq Troop Pullout
Oil Executives Grilled Over Soaring Prices
Senator Changes Course, Balks at Funding Iraq War
Experts Warn Senate Panel of World Food Crisis
Congress Eyes Answers to Rising Gas Prices
Lawmakers Press Bush to Tap Petroleum Reserve
David Welna: Obama and Superdelegates
Democrats Trade Jabs on Rival Talk Shows
Lawmakers Revisit Ethanol Mandates as Prices Soar
Bush, Congress Clash on Dealing with Gas Prices
Obama Ends Fox News 'Boycott'
The Difficulties with Questioning Congressmen
Senate Votes to Give Benefits to Filipino Vets