As Joe Biden was announced to be the projected president-elect Saturday, President Donald Trump's campaign announced legal challenges in several states.

Pace University professor Bennett Gershman says with the lawsuits, Trump is opening the door for his supporters -- almost half of the country -- to question the electoral process.

"With lawyers, we need facts. We need evidence. We need to be able to base our claims on these facts. Now, in Trump world, I guess facts don't matter. All that matters is making these kinds of claims," he says.

With the more than 270 electoral votes needed to win the presidency, the race is Joe Biden's but President Trump says he's still in the game.

He's arguing for recounts in states that've already been called, claiming things like fraudulent signatures and sidelined poll watchers. He announced he's taking these claims to court in states where he lost by slim margins.

"You can't say 'there's fraud' when I'm losing, but everything's OK when I'm winning. You know, it's like a 5-year-old," says Gershman.

Some attorneys who consider themselves Republicans are skeptical.

"People have a right to their day in court, however, it's really clear there's been no evidence presented publicly that shows widespread voter fraud," says attorney Dan Schorr.

Some maintain there's still potential for President Trump to get a second term - and they say the judicial branch is a viable path.

"This election will be decided by the Supreme Court, as was in 2000 when we had a dispute over the Gore-Bush election," says political analyst Jason Meister.

No matter how these lawsuits play out in court, experts say the integrity of the American vote is at stake.