Election 2020 updates: Biden warns of 'dark winter,' pushes masks in pandemic plan

Republicans who have been critical of Trump wished Biden well on Saturday.

Maryland Gov. Larry Hogan tweeted, "Congratulations to President-elect Biden. Everyone should want our president to succeed because we need our country to succeed. We have great challenges ahead of us as a country. Now more than ever, we need to come together as Americans."

Sen. Mitt Romney tweeted, "Ann and I extend our congratulations to President-elect Joe Biden and Vice President-elect Kamala Harris. We know both of them as people of good will and admirable character. We pray that God may bless them in the days and years ahead."

But Trump's former national security adviser John Bolton said Saturday, "For the sake of our country, I wish Biden well, but I will continue to consider myself, until January 20 and then after January 20, part of America's loyal opposition."

"Any other president's national security policy would be more coherent, consistent and sustained than Donald Trump's. The risk with Joe Biden is not that his policy will be chaotic like Trump's but that it will be badly misguided, as Obama's was," Bolton said.

"Biden has pledged to extend the New START treaty with Russia, resuscitate the Iran nuclear deal, and return to the Obama approach to Cuba, all egregious mistakes, among others," he continued. "Biden's real views on dealing with China are obscure."

ABC News announced it will air a prime-time special on President-elect Joe Biden and Vice President-elect Kamala Harris' address to the nation Saturday.

The special will air at 8 p.m. ET on the ABC Television Network and streaming news channel ABC News Live. Chief Anchor George Stephanopoulos will lead coverage from New York City and will be joined by "World News Tonight" Anchor David Muir, "ABC News Live Prime" Anchor Linsey Davis and ABC News’ powerhouse political team reporting on the historic event.

From New York to Philadelphia to Washington, D.C., to Atlanta to Los Angeles, Americans are cheering, honking horns and taking to the streets to celebrate Biden's win.

In Washington, D.C., revelers at Black Lives Matter Plaza popped champagne bottles and sang “Celebrate Good Times."

Patrisse Cullors, co-founder and executive director of Black Lives Matter Global Network Foundation, said in a statement, "Black voters showed up in huge numbers to turn this country around and remove the racist in the White House. What is abundantly clear is Black voters were the factor that tipped the scales in favor of Joe Biden and Kamala Harris, especially in Rust Belt battleground states. It's striking that the same people who have been treated the worst by our democracy are doing the most to save it."

"We congratulate Joe Biden on becoming President, and particularly Kamala Harris, on becoming the country’s first woman - a Black woman - to serve as Vice President. This historic win is a testament to the work Black women have been doing in the streets, in this campaign, and at every level of politics," Cullors said.

Senate minority leader Chuck Schumer celebrated on the streets of New York, proclaiming that the "long dark night in America" is over.

"So I say to Donald Trump: You lost. No more games. Go home. Go home to Florida," Schumer said. "Stop making up lies about the election. It was fair. There have been no irregularities found."

Schumer also encouraged Democrats to get involved in the Georgia Senate runoff race this January.

"Tell anyone you know in Georgia make sure you vote," Schumer said.

ABC News projects Biden will win the battleground state of Nevada.