President Barack Obama addresses immigration reform on Jan. 29. 2013 in Las Vegas, Nevada.

President Barack Obama said on Sunday more tax revenue would be needed to reduce the U.S. deficit and signaled he would push hard to get rid of loopholes such as the "carried interest" tax break enjoyed by private equity and hedge fund managers.

Obama, who won re-election in November largely on his promise to raise rates for the wealthiest Americans, pushed through a legislative package at the beginning of the year that raised rates for individuals making more than $400,000 a year and households making more than $450,000 a year.