By Patricia Zengerle WASHINGTON | Tue Feb 26, 2013 5:47pm EST (Reuters) - The Senate on Tuesday confirmed Chuck Hagel as President Barack Obama's new secretary of defense, ending an unusually acrimonious confirmation fight. The Senate voted 58-41 to confirm the former Republican senator as the civilian leader of the Pentagon in a largely party line vote. Just four Republicans joined the Democrats and independents in support of Hagel's nomination. The Senate had voted earlier on Tuesday to end debate and move forward, almost two weeks after Republicans launched a filibuster to block Hagel's nomination. It was the first time...