On raising the national debt ceiling:
“The fact that we are here today to debate raising America’s debt limit is a sign of leadership failure. It is a sign that the U.S. government can’t pay its own bills. … I therefore intend to oppose the effort to increase America’s debt limit.”-March 16, 2006

“If Congress refuses to raise what’s called the debt ceiling, America would not be able to meet all of our financial obligations for the first time in 225 years.”-October 8, 2013

On executive orders:
“My job is to execute laws that are passed, and Congress right now has not changed what I consider to be a broken immigration system. And what that means is that we have certain obligations to enforce the laws that are in place, even if we think that in many cases the results may be tragic.”-Feb 14, 2013

“We’re not just going to be waiting for legislation in order to make sure that we’re providing Americans the kind of help they need. I’ve got a pen and I’ve got a phone.”-Jan 14, 2014

On gay marriage:
“I believe marriage is between a man and a woman. I am not in favor of gay marriage.”-November 1, 2008

“I’ve just concluded that– for me personally, it is important for me to go ahead and affirm that– I think same-sex couples should be able to get married.”-May 9, 2012

On Obamacare:
“If you like the plan you have, you can keep it.  If you like the doctor you have, you can keep your doctor, too.  The only change you’ll see are falling costs as our reforms take hold.”-June 6, 2009 (PolitiFact ranked it “lie of the year 2013,” and premiums have indeed gone up.)

On the deficit and his responsibility

“Over the last four years, the deficit has gone up, but 90 percent of that is as a consequence of two wars that weren’t paid for, as a consequence of tax cuts that weren’t paid for, a prescription drug plan that was not paid for, and then the worst economic crisis since the Great Depression. Now we took some emergency actions, but that accounts for about 10 percent of this increase in the deficit.”-September 12, 2012 (Washington Post said Obama was responsible for 44% of it, while Bush, who Obama was referring to, was responsible for 10%)

On his legacy:
“We have not had a major scandal in my administration.”-October 24, 2016 (Of course, he forgets the IRS scandal, the VA scandal, Fast and Furious, Benghazi, etc.)