UPDATE 12:45 p.m. ET: Clinton maintains an extraordinarily slight edge, with 49.8 percent of the vote to 49.6 percent for Sanders, with 98 percent of precincts reporting, according to CNN.

Original story begins here:

The Democratic contest between Hillary Clinton and Senator Bernie Sanders of Vermont at the Iowa caucuses is still too close to call. The race was close all night, with Sanders trailing by as many as seven points early in the evening and gradually closing the deficit as more and more caucus results were reported.

Clinton took the stage in front of her supporters at about 11:30 and expressed her thanks for all their hard work. Sanders had originally planned to leave for New Hampshire, but decided to stay at his hotel with his staff and family until the final results came in. He spoke later, at about 11:45, focusing largely on his campaign themes of income inequality and his outsider status.

Clinton and Sanders will split the delegates from Iowa, meaning that regardless of the final tally of votes, this race was effectively a tie. The campaign will move on to the New Hampshire primary next, where Sen. Sanders holds a substantial lead, then to South Carolina, where Clinton has the advantage in current polling.

Former Maryland governor Martin O'Malley took the remainder of votes in Iowa, but also suspended his campaign, effectively ending his bid for the presidency.

This post will be updated as further information comes in.

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