The polls are opening in Idaho, Nevada, California and Oregon.

White House Press Secretary Kayleigh McEnany said on Fox News Tuesday morning that they are predicting a “landslide” victory.

"Under every circumstance our campaign believes that tonight will be a landslide," McEnany said on Election Day.

When asked about Trump continuing to attack the Supreme Court decision on Pennsylvania ballots, McEnany echoed the president's sentiments but said further litigation may not be necessary.

"We'll take our case to the Supreme Court as needed," McEnany said. "We don't think it will come down to that. I predict now we win Nevada, Minnesota. I do believe President Trump has a landslide and this talk of litigation is nothing."

McEnany also blasted former Vice President Joe Biden's schedule saying he is now trying to "catch up with President Trump."

"You have Biden finally out of the basement on Election Day trying to catch up with President Trump," she said. "Voters are wise and smart. They see if Joe Biden would not fight for your vote."

- ABC News’ Elizabeth Thomas

President Donald Trump called into “Fox & Friends” Tuesday morning for his first interview on Election Day.

When asked about reporting that he could try to prematurely declare victory, Trump said he will only declare victory “when there is victory.” He added that “there is no reason to play games,” but was unspecific about what determines victory in his mind.

The president went on to say he thinks he has a “very solid chance at winning.” He then immediately followed that with, “I don’t know what the chances are,” but he said he is basing his confidence in part on his crowd sizes.

On his Election Day plans, the president said that in addition to going to visit his campaign headquarters in Virginia this morning, he’ll be doing a “big series of phone calls” to people who have been loyal to him.

On the specter of civil unrest resulting from the election -- specifically about the possibility of chaos in the streets if he wins again -- Trump said it will all be in “Democrat-run cities” and said that “my side is a very strong side, if they wanted to but they don't like doing that.”

The president also predicted he would be victorious in key states including Texas, Florida, Arizona, North Carolina and Pennsylvania. 
Finally, the president reiterated that he would like the results of the election to be finalized by the end of the day.

“I’d like to find out on November 3rd, the end of the evening or, you know, late into the morning, who won the election," he said.

- ABC News’ Jordyn Phelps and Elizabeth Thomas

The polls are opening in Nebraska, Montana, Wyoming, Colorado, New Mexico, Utah and in several counties in Tennessee.

Biden warns of 'dark winter' ahead as he lays out COVID-19 plan, calls for unity on masks

President-elect Joe Biden in his first solo remarks to Americans since his victory speech over the weekend reminded Americans of the ongoing coronavirus pandemic as cases and hospitalizations rise across the country, and said the country is “still facing a very dark winter” before offering his plan to combat it.

"We are ready to get to work addressing the needs of the American people. Today, that work begins," Biden said from The Queen Theater in Wilmington Delaware, following a briefing with his newly-announced COVID-19 advisory board. "It starts with doing everything possible to get the COVID-19 under control, so that we can reopen our businesses safely and sustainably, resume our lives, put this pandemic behind us."

While he praised the announcement from Pfizer Monday morning that the company has a vaccine in trial that looks "90% effective in preventing COVID-19," Biden reminded that even if the vaccine is approved, it will not be widely available for months. He went on to urge all Americans, regardless of whether they voted for him, to "end the politicization of basic responsible public health steps."

"This election is over. It’s time to put aside the partisanship and the rhetoric that’s designed to demonize one another," Biden said, reminding Americans to keep social distancing and wearing a mask.

"Doesn't matter who you voted for, whether you stood, where you stood before election day, doesn't matter your party, your point of view. We can save tens of thousands of lives if everyone would just wear a mask for the next few months. Not Democrat or Republican lives, American lives," he added. "A mask is not a political statement but it is a good way to start pulling the country together."

After pledging to rejoin the World Health Organization on "Day One," Biden also said his advisory board will include experts on global health security, "so that we can restore U.S. global leadership to fight this pandemic" -- in sharp contrast to Trump's isolationist approach to the virus and general policy.