Twitter blogged that;
The 44th President and 113th Congress on Twitter On Monday (Jan. 21), Barack Obama will be publicly sworn in as President. While buzz about the Inauguration builds on Twitter, the legislative branch has some news of their own: as of today, all 100 members of the Senate as well as 90% (398 members) of the House of Representatives are on Twitter.And if you want to find your senator on the twitter follow this list to find him/her and if you also find your House member among 398 of them, follow this link.
It is not only the House (90%) and Senate that is making news, our First Lady, Michelle Obama (@FLOTUS) is making '#bangs' on the Twitter.
In addition to the above accounts, the following services and agencies are also on the Twitter, bringing you news about President Obama(@BarackObama) Inauguration. @SecretService, @ObamaInaugural, @MetroInaug, @USCapitol, @JCCIC2013, and@DHSgov.