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The big picture

Tuesday’s election results offer insights on two crucial political dynamics heading into the 2020 campaign: the depth of President Trump’s appeal with Republicans and how fully suburban voters have swung to the Democrats.

The Republican candidates for governor in Kentucky and Mississippi have aggressively linked themselves to Mr. Trump and sought to tie their rivals to the national Democrats pursuing the impeachment inquiry against the president. Mr. Trump, who comfortably carried both states in 2016, has put his political capital on the line: He rallied voters in Mississippi on Friday and was in Kentucky on Monday night.

The president has not appeared on the campaign trail in Virginia, where Democrats had hoped that Mr. Trump’s deep unpopularity in the suburbs would be enough for them to flip control of both chambers of the state legislature. They succeeded on Tuesday. Virginia is the only Southern state the president lost in 2016, and Republicans faced a series of difficult races in metropolitan districts.