BOSTON (AP) -- Massachusetts voters flocked to the polls to cast ballots in the hard-fought Senate race pitting Republican Sen. Scott Brown against Democratic challenger Elizabeth Warren.
The race has been the most expensive Senate contest in the nation this year, and polls going into Election Day showed it was tight.
Brown and Warren spent an estimated $68 million in one of the most closely watched campaigns in the nation.
Brown is seeking a full six-year term. He went to Washington two years ago after winning a special election for the seat held by the late Sen. Edward Kennedy.
Warren is a former Obama administration adviser who was the architect of the consumer watchdog agency set up after the meltdown on Wall Street.