Obama on Energy: U.S. is Saudi Arabia of Gas Mark Kelly: Gabby's Resignation a 'Difficult Thing to Do' Rep. Giffords' husband says "tough" decision was the right thing to do. President also repeats call for millionaires pay higher taxes. Clinton Ready to Leave 'High Wire' of US Politics Hillary Clinton talks departure, says she has not seen the Republican debates. Mayor Apologizes for 'Taco' Comments East Haven, Conn., Mayor Joseph Maturo's remarks upset Latino community. Newt Gingrich Attacks Romney on 'Mud' Ads GOP candidate calls anti-Gingrich ads "desperate" and "false." Romney, Gingrich in Dead Heat in Florida The Republican frontrunners are tied just before a primetime debate. Newt Gingrich Talks Moon Base, Space Exploration Presidential candidate would make space a priority. Newt Gingrich Draws Huge Crowds in Florida Former House speaker has buzz heading into Tuesday primary. Analysis: Advantage of State of the Union Address