On April 4, 2011, Obama announced that he would seek re-election in 2012. He did not face any significant rivals for the Democratic nomination. His Republican opponent was Mitt Romney, a former governor of Massachusetts. Romney called for lower taxes, spending cuts, an increase in defense spending, and a repeal of Obamacare (even though it was based on a Massachusetts healthcare plan developed under Romney). Obama's campaign was based in Chicago and run by many former members of the White House staff and members of the successful 2008 campaign. Obama won re-election with 332 (out of a total of 538) electoral votes and 51.1% of the popular vote, making him the first person since Dwight Eisenhower to twice win 51 percent of the vote. According to exit polls, Obama won a majority of the vote from women, blacks, Hispanics, Asians, people under 45, people making less than $50,000 per year, people inhabiting large or mid-sized cities, liberals, moderates, the unmarried, gays, and people with no college education, some college education, or graduate degrees. In addition to the presidential election victory, the Democrats also picked up seats in both houses of Congress, but Republicans retained control of the House.