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Twitter’s official hashtag was #inauguration. The microblogging service set up an Event page to monitor tweets about the occasion.

According to Twitter, there were 1.1 million tweets sent during the ceremony, which lasted just over an hour, referencing the inauguration, with the peek moment for tweets following the moment Obama said: "We cannot mistake absolutism for principle, or substitute spectacle for politics, or treat name-calling as reasoned debate."

Some of those tweets were clearly coming from the risers set up for VIPs at the Capitol. Many members of Congress tweeted comments and photos during the ceremony.

Sen. Patty MurrayPatty MurrayOvernight Healthcare: Trump officials weigh fate of birth control mandate | House, DOJ seek delay in ObamaCare lawsuit Top lawmakers from both parties: 'Vaccines save lives' Senate Dems move to nix Trump's deportation order MORE (D-Wash.) and Rep. Gwen MooreGwen MooreTrump to black reporter: Help me meet with Black Caucus Cummings: I will attend Trump's inauguration CBC to Trump: Keep Richard Cordray, ensure the protection of American consumers MORE (D-Wis.) both tweeted their view of the president.


Sen. Claire McCaskillClaire McCaskillJuan Williams: Senate GOP begins to push Trump away Dem senator: I may face 2018 primary from Tea Party-esque progressives Dems ask for hearings on Russian attempts to attack election infrastructure MORE (D-Mo.) mocked Supreme Court Justice Antonin Scalia’s “weird” hat, Sen. Mike CrapoMike CrapoTime for the feds to deregulate gun suppressors Senate votes to repeal transparency rule for oil companies Live coverage of Sessions confirmation hearing MORE (R-Idaho) complimented the Marine Corps Band and Rep. Glenn Thompson (R-Pa.) snapped a photo of Beyoncé while the singer delivered the closing rendition of the National Anthem.

Clarkson, who sang “My country, ‘tis of thee” during the ceremony, tweeted her relief after finishing the song, and Michelle ObamaMichelle ObamaMichelle responds to Barack with her own Valentine's tweet Obamas' former Harvard law professor: Michelle should have been president Obamas sign with agency for speaking gigs MORE personally tweeted that she felt “honored and blessed” that so many Americans attended the ceremony.




Commenting on the chilly weather in Washington, D.C., was actress Gabrielle Union — who also said it was “worth it” to be a “frozen fudge pop” — and Longoria, part of the inaugural committee, tweeted a photo of herself — also looking bundled up from the cold — on the platform.


The White House encouraged Twitter followers to share favorite quotes from Obama’s inauguration speech using the hashtag #inaugquote, but the hashtag never really got going, according to Topsy analytics.


The Presidential Inaugural Committee went on to live-tweet the parade following the swearing-in ceremony on Monday afternoon from @obamainaugural, while the Secret Service continued sharing updated security information about barricades and long lines at @secretservice.