Virginia Governor Elect Ralph Northam (C) celebrates with, left to right, Gov. Terry McAuliffe, Lt. Governor Elect Justin Fairfax, Attorney General Mark Herring and Sen. Mark Warner (D-VA), at his election night rally on the campus of George Mason University in Fairfax, Virginia, November 7, 2017 (Photo: Reuters)
US President Donald Trump suffered a triple defeat as Democrats won high-profile state and mayoral elections to underscore his unpopularity on Wednesday's first anniversary of his dramatic election win.
The Tuesday night results amounted to a sweeping repudiation of what critics have called Trump's politics of division, and a test of his influence ahead of electoral battles looming on the state and national level.
The most damaging defeat was in Virginia, a state bordering Washington seen as a bellwether for national politics with the country gearing up for 2018 congressional elections and the next presidential contest in 2020.
The Virginia governor's race had all the makings of a nailbiter, but in the end, Lieutenant Governor Ralph Northam trounced his Republican rival Ed Gillespie by an unexpectedly wide nine percentage points in the southern battleground state.
In New Jersey, Democrat Phil Murphy reclaimed the governorship with a victory of about 13 percentage points over his rival following eight years of Republican Governor Chris Christie, a onetime ally of Trump.
And in New York, progressive Mayor Bill de Blasio rode a wave of hometown distaste for Trump to cruise to re-election in America's most populous city.
Murphy and Northam painted their wins as rejections of the polarization that to a large extent characterized Trump's 2016 campaign and much of his first year in the White House.
"Tonight, New Jersey sent an unmistakable message to the entire nation: we are better than this," Murphy declared.
The results mark a revival of political fortunes for the Democratic Party, which had failed to win a number of previous special elections in several states this year triggering concern about how to counter Trump's influence in US politics.
"This is a referendum on American values," Democratic National Committee Chairman Tom Perez said on CNN, speaking of the Tuesday night sweep.
In a statement, the Committee said it had won not just in Virginia and New Jersey but "up and down the ticket across the country" by maintaining or flipping mayoral and state house seats in six other states.
In Virginia, Democrat Danica Roem, 33, made history by becoming the state's, and possibly the nation's, first openly transgender state legislative delegate.
A victory for Gillespie would have served to validate Trump's aggressive style, and form a blueprint for how mainstream Republicans can embrace Trump issues without necessarily embracing the controversial man himself.
Now they might be forced to rewrite their playbooks.
In his typically combative style, Trump swiftly sought to distance himself from Gillespie, who did not campaign with the president in Virginia.
"Ed Gillespie worked hard but did not embrace me or what I stand for," Trump wrote in a scathing tweet from South Korea, where he is in the midst of a tour through Asia.
The president insisted that with the US economy doing well, "we will continue to win."
But some analysts said the results suggest a Democratic wave might be on the horizon.
Virginia was a "bloodbath" for Republicans, Michael McDonald of the University of Florida told AFP.
Even though Gillespie aired ads that fueled a debate on race, guns, illegal immigration and the fate of Confederate statues, his attempt to distance himself from Trump specifically just did not work.
"Trump sucks up a lot of the air in American politics, so it's difficult for any Republican to run away from Donald Trump," he said.
If Trump had not proven a drag on Virginia voters, it would demonstrate his overwhelming power to draw Americans to polls despite poor approval numbers.
Compounding the Republican woes in Virginia, Democrats also won contests for lieutenant governor and attorney general.
The party gained several seats in the 100-member House of Delegates, putting Republicans under threat of possibly losing control of the state legislature.
"There will be a lot of Republicans who are concerned" about how such a development might translate into losses in 2018's congressional mid-term elections, McDonald said.
"If they can lose control of a legislative chamber, they can certainly lose control of the US House of Representatives," said the professor.
All 435 seats in the US House are up for re-election every two years.
Republicans currently hold a comfortable majority, but if they lose that advantage, Trump's legislative agenda, including his longstanding effort to repeal and replace the existing health care law, would come under threat.