barry o n trump
Then President Barack Obama (right) greets then President-elect Donald Trump at inauguration ceremonies swearing in Trump as president on the West front of the Capitol in Washington, D.C., January 20, 2017. Reuters

If he was stressed, he wasn't showing it. For the first time since pushing back against President Donald Trump's wiretapping claims, former President Barack Obama was spotted Sunday in Washington, D.C. as he left the National Gallery of Art.

Photos of Obama published by People Magazine showed Obama walking with former first lady Michelle Obama. He looked jovial dressed casually in blue jeans, a button-up shirt, leather jacket and wayfarer sunglasses carrying a colorful bag of some sort. Obama, apparently enjoying a nice Sunday with his wife, of course drew a crowd at the gallery run by the Smithsonian and was subject to a round of applause from fellow visitors, according to the Hill.

The trip Sunday marked the first time the former president has been spotted in public since his office denied unsubstantiated claims from Trump that his New York City tower was bugged ahead of the election.

"Terrible! Just found out that Obama had my 'wires tapped' in Trump Tower just before the victory. Nothing found," Trump tweeted as a part of a Saturday morning tweetstorm. "I'd bet a good lawyer could make a great case out of the fact that President Obama was tapping my phones in October, just prior to Election! ... How low has President Obama gone to tapp [sic] my phones during the very sacred election process. This is Nixon/Watergate. Bad (or sick) guy!"

Trump provided no evidence to back this claim and the former director of national intelligence as well as the head of the FBI denied Trump's wires were tapped. An Obama spokesman said the allegations were false.

"A cardinal rule of the Obama administration was that no White House official ever interfered with any independent investigation led by the Department of Justice," spokesman Kevin Lewis said.

The Trump camp Monday continued to assert that the wiretap could have happened and have called for an investigation. As for the former president, while Obama has certainly taken some time away from the political scene since handing over the White House to Trump, he has also said he would remain active during the GOP president's tenure.