(AP) — Gov. Scott Walker has conceded defeat to Democrat Tony Evers.

Walker says he called Evers on Wednesday to concede defeat. The two-term Republican incumbent had held off conceding because the race was so close, but his campaign decided Wednesday there were not enough votes in play to change the outcome.

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Based on unofficial results, Evers won by about 31,000 votes.

Walker says in a statement that he offered the full support of his staff and Cabinet to Evers as he begins the transition.

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Walker had expressed concern about 2,000 absentee ballots in Milwaukee that had been reconstructed due to errors or damage. But Walker’s campaign says in a statement that it determined there weren’t enough votes in question to change the outcome of the race.

Evers is slated to be sworn into office Jan. 7.

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