Mr Bevin had closely aligned himself to Trump during his election campaign, and his failure to secure a clear victory will be seen as both a blow to Trump's support and his policy.
"Turnout was near presidential level for an off year election", said Cauley. The powerful senator would quell some of those hopes with a Bevin victory, while he'd likely watch a fundraising bonanza for a potential challenger if Beshear prevails.
"Virginians were not fooled by Republicans who spent the campaign pretending they're moderate, pretending they're for health care, pretending they're for sensible gun regulations, pretending they don't even know who Donald Trump is", Biden said in a statement issued by his campaign.
But while these numbers made the race close, Kentucky is an extremely conservative state, having backed President Donald Trump by almost 30 points.
Meanwhile, in Virginia, Democrats overturned Republican majorities in both chambers of the state legislature. "You can't let that happen to me".
Republicans suffered setbacks in two states in off-year elections Tuesday, despite President Donald Trump's efforts to rally supporters to the defense of GOP candidates down the ballot as the 2020 race heats up.
The Republican governor appeared to be poised to win re-election until Trump rallied with him and McConnell in Lexington, and Bevin narrowly lost to Democrat Andy Beshear after the president said the gubernatorial race was a referendum on his administration.
In Mississippi, Republican Lieutenant Governor Tate Reeves defeated Democratic state Attorney General Jim Hood in the governor's race.More news: Takeaways from Ukraine testimony
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"Yesterday's victories show that there is an unstoppable momentum for our cause, and we're confident we will carry this energy into more victories for reproductive health champions in 2020 and beyond", Robinson said. In the closing days Bevin made the race entirely about Trump on the stump and in television ads. For the race, the state's political action group, Planned Parenthood Action Kentucky UCC, launched its first "direct voter contact program", an initiative that combined door-knocking, digital ads and direct mail - all highlighting Bevin's anti-abortion politics.
Democratic National Committee Chairman Tom Perez used the same metaphor earlier Tuesday to predict Bevin's loss and tie it to Trump. Trump soon after said the boost was "maybe 20".
On a related note, the same poll added, "Just over 4-in-10 (42%) registered voters feel that Trump should be reelected in 2020, while a majority (55%) say it is time to have someone new in the Oval Office".
Two years ago, Danica Roem became the first openly transgender candidate to win election a state legislature seat.
Democrats will now be able to draw legislative district lines for the coming decade that consolidate their power, and pass new gun-control restrictions and minimum-wage laws.
There were positive results in the state for Republicans, such as their state attorney general candidate David Cameron winning with just under 58 percent of the vote.
They won the MS governor's race, picked up seats in the New Jersey state house, and a nationally watched race for the Texas state house is headed to a run-off, where Republicans look like they are in a good position to win.