Even before all the midterm votes had been counted, the record number of Democrats preparing to run for the White House in 2020 had already turned their attention to toppling President Trump.

At least five of the Democrats who were re-elected to the Senate could among those vying for the 2020 Democratic nomination. Sen. Bernie Sanders of Vermont won with a thumping 67.4 percent of the vote, 40 points ahead of his Republican challenger. Sen. Elizabeth Warren of Massachusetts secured 60.7 percent, beating her Republican opponent by 25 points, compared to 7 points when she was first elected in 2012.