Denial comes a day after US president said Taliban 'wants to make a deal' in remarks during trip to Bagram Airfield to celebrate Thanksgiving

US leader serves turkey to soldiers in a cafeteria, delivers remarks in a hangar, meets Afghan president Ashraf Ghani

Pelosi also leads congressional delegation to country as US looks to drawdown troops and get peace talks with Taliban back on track

The US president has vowed progress on Israel and the Palestinians, Iran, Afghanistan, North Korea and numerous trade deals. Some efforts are inching forward. Others have stalled

Second attack this week underscores Afghan government warnings that a preliminary US-Taliban deal on ending the war is moving dangerously quickly

President Ashraf Ghani says Taliban also to blame for violence ravaging country, calls on people of Pakistan to help rout out safe havens for fighters in their country