President Barack Obama will press European Union officials on Monday to reach a definitive solution to their sovereign debt crisis which is emerging as a major 2012 U.S. election worry. As Germany and France scramble to tighten budget controls across the euro zone, European Council President Herman Van Rompuy and European Commission President Jose Manuel Barroso will face tough questions from Obama at the White House on how much longer the crisis might go on. No breakthroughs are expected from the meeting, which will not include the European heads of state who need to make crucial decisions about the future...