Democrats strengthened their hold on the Senate but failed Tuesday to recapture the majority in the House of Representatives they lost two years ago. President Barack Obama, in his freshly authorized second term, will face the same divided Congress in 2013 that has bedeviled efforts to enact his major legislation. “Now that the election is over, it’s time to put politics aside and work together to find solutions,” said Senate Majority Leader Harry Reid, D-Nev., who may have a slightly bigger working majority — but not as big as the filibuster-proof one Obama enjoyed his first two years in the …