Former President Obama said he felt "serenity" during President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's inauguration.

During an interview with Prince Harry, Obama said the first thing he thought during Trump's inauguration was how thankful he was that former first lady Michelle Obama Michelle LeVaughn Robinson ObamaBlack stars reimagine 'Friends' to get out the vote Obama shares phone number to find out how Americans are planning to vote Michelle Obama: 'Don't listen to people who will say that somehow voting is rigged' MORE had been his "partner through that whole process."

There was a “satisfying feeling that was mixed with all the work that was still undone,” he said.

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“But over all, there was serenity there,” he said.

Prince Harry interviewed Obama for a segment that aired Wednesday on the BBC.

In September, CNN reported that Obama in his Inauguration Day letter offered "reflections" instead of advice.

Obama in his letter congratulated Trump on his "remarkable run" and said "all of us, regardless of party, should hope for expanded prosperity and security during your tenure."