Now, nearly a year since Obama signed that order, Gitmo remains open, although several detainees have been moved overseas, freed or sent to U.S. prisons. The remaining will be sent to the Thomson Correctional Center in Illinois, much to the chagrin of most Republicans and some Democrats, although a date for the final transfer has not yet been set and it is unclear how long it will really take to close the center.
Since the botched terror attempt on Christmas day, Republicans have upped their objections to such a move, saying it would compromise national security.
As a presidential candidate and soon after taking office, Obama vowed to implement a timeframe for ending the war in Iraq and bringing back U.S. troops.
"I think that we have a sense, now that Iraq has just had a very significant election with no significant violence, that we are in a position to start putting more responsibility on the Iraqis," Obama said in the February interview with NBC. "And that's good news for -- not only the troops in the field but their families who are carrying an enormous burden."
In his campaign, Obama also pledged repeatedly to send more troops to Afghanistan to focus on the war there.
On both fronts, the president has made good on that pledge. He has significantly upped the number of troops in Afghanistan while pulling combat troops out of Iraq.
But at the same time, the president -- as he has done in several other cases -- set a time frame for withdrawal.
"Let me say this as plainly as I can: by August 31, 2010, our combat mission in Iraq will end," Obama said at a speech in Camp Lejune in February. "Through this period of transition, we will carry out further redeployments. And under the Status of Forces Agreement with the Iraqi government, I intend to remove all U.S. troops from Iraq by the end of 2011."
Whether that happens or not remains to be seen.
In Afghanistan, the president has ordered an additional 30,000 troops be sent, not just to combat the Taliban, but also to train the Afghan national army and local security forces.
Obama told the nation last month that troops would begin transitioning out of Afghanistan by July 2011, a pledge that caused firestorm among Republicans. Administration officials later clarified that the time frame is not set in stone, and withdrawal will be based on conditions on the ground.
Candidate Obama pledged that no lobbyists would work in his White House. As a newly-arrived president, he reiterated that promise.
Announcing "firm rules of the road for my administration and all who serve in it" in January 2009, the president said, "We need to close the revolving door that lets lobbyists come into government freely and lets them use their time in public service as a way to promote their own interests over the interests of the American people when they leave."
Obama's executive order mandated that lobbyists who became members of the administration will not be able to work on matters they lobbied on for two years, or in the agencies they lobbied during the previous two years. Anyone who leaves the Obama administration will not be able to lobby his administration.
But there have been notable exceptions to that rule.
Obama waived it for Deputy Defense Secretary William Lynn, who was a registered lobbyist for the defense contractor Raytheon before being appointed in January.