In the morning, President Obama will receive the Presidential Daily Briefing in the Oval Office. Later, he will drop by a meeting hosted by the vice president to discuss the new START treaty with Russia. Attendees include: Secretary of State Hillary Clinton, Sens. John Kerry (D-Mass.) and Richard Lugar (R-Ind.), former Secretaries of State Madeleine Albright, James Baker, and Henry Kissinger, former Secretaries of Defense William Cohen and William Perry, former National Security Advisor General Brent Scowcroft, Vice Chairman of the Joint Chiefs of Staff General James Cartwright, and Former Sen. Sam Nunn (D-Ga.).
Later, the president and the vice president will meet with congressional Democratic Leadership in the Oval Office. The president will also meet with senior advisers in the Oval Office.
In the afternoon, the president and the vice president will meet with Secretary of the Treasury Tim Geithner in the Oval Office.
In the evening, the president will travel to Lisbon, Portugal to attend the NATO and EU summits.
Here's the Full Schedule from the White House (all times Eastern):
9:30AM: President Obama receives the Presidential Daily Briefing
10:00AM: President Obama drops by a meeting to discuss the new START treaty
10:45AM: President Obama and Vice President Biden meet with Congressional Democratic Leadership
11:45AM: President Obama meets with senior advisers
3:00PM: President Obama and Vice President Biden meet with Secretary of the Treasury Geithner
11:15PM: President Obama departs the White House en route Andrews Air Force Base
11:30PM: President Obama departs Andrews Air Force Base en route Lisbon, Portugal