TimesCast: Unemployment Rate Falls - NYTimes.com Romney Criticizes Obama; His Rivals Line Up to Criticize Him In a brief trip to South Carolina, seeking to shore up his support there, Mitt Romney accused President Obama of failing the American people on the economy. When he lost his 2006 re-election bid, Rick Santorum built a lucrative career in the private sector based largely on income from businesses his work in Congress had benefited. Political Memo: President Obama Unveils Aggressive Re-election Strategy Against G.O.P. Rivals From making a recess appointment to inserting itself into the Iowa caucuses, the Obama campaign is trying to tie his rivals to the unpopular Congress. Apparent economic recoveries have stalled before during the past few years, but there may be some reasons to be more optimistic this time. At a midday event in front of a gathering of college students, Mr. Santorum compared allowing gay couples to marry to polygamy, apparently equating the two as equally undesirable.