Before Election Day had reached its halfway point on Tuesday, voters in key states found overwhelming lines and a flurry of misinformation at polling places. The Lawyers’ Committee for Civil Rights said it had fielded thousands of calls from voters who had been turned away. In Pennsylvania, some were told they needed a photo ID to vote, when in fact only first-time voters do. Also in Pennsylvania, an electronic voting machine has been taken out of service after changing votes for Obama to Romney. Other polling places opened late or had too few staffers to handle the crowds. Voting in New Jersey, one watchdog group said, is a “catastrophe.” And in New York, Mayor Michael Bloomberg had to help a poll worker find his name on the voter rolls.