Early Wednesday morning, three U.S. Senate races — in Montana, Arizona and Florida — were still too close to call.

In Montana, the contest between Democratic incumbent Jon Tester and Republican Matt Rosendale was separated by a margin of roughly 1.7 percent. Rosendale holds a lead of 6,082 votes out of more than 355,000 cast. Roughly a third of precincts remain to be counted.

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Republican Martha McSally leads Democrat Kyrsten Sinema by 17,240 votes in the race for Sen. Jeff Flake’s seat in Arizona. With more than 1.6 million cast, the margin is roughly 1 percent as of Wednesday morning. Roughly 75 percent of votes in Arizona remain to be counted after Election Day.

With all Florida precincts reporting as of 3:45 a.m. ET on Wednesday, Republican Rick Scott holds a lead of 38,717 votes out of more than 8 million cast over Democratic incumbent Sen. Bill Nelson. The current margin is less than one half of 1 percent. Under state law in Florida, a recount is mandatory if the winning candidate’s margin is less than 0.5 percentage points.

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