Jack Lew, President Barack Obama's nominee to lead the U.S. Treasury Department, faces a grilling about a big bonus he received from Citigroup and his plans for the government's finances when he testifies before a Senate panel on Wednesday. Lew, a 57-year-old New Yorker who is White House chief of staff, is a budget wonk who would rather avoid television cameras, Obama has said. But he will be in the spotlight on Wednesday over his own finances, namely a $940,000 bonus he received in January 2009 after a brief stint at Citigroup, just before the bank received a taxpayer-funded bailout. Republicans on the Senate ... (full story)