Appearing on Broadway for one night only: Barack Obama, in a solo comedy act roasting the Republican Party.<br />The president left a crowd of more than 1,300 in stiches on Monday night at the Richard Rodgers Theatre, home to the hit musical "Hamilton" about Founding Father Alexander Hamilton.<br />The cast staged a special performance for a Democratic National Committee fundraiser, with Obama as the encore.<br />Deviating from his typical fundraiser spiel, Obama said the 2016 Republican presidential candidates seem to "occupy a different reality" in which the country has taken a perilous turn since he took office nearly seven years ago.<br />"According to them, everything was really good in 2008, when we were going through the worst economic crisis in our lifetimes," Obama said.<br />"This, apparently, was the golden age that I messed up."