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Last-Ditch Effort Underway to Elect Hillary Clinton, Block Donald Trump Presidency

Some Democrats who have been bemoaning a Donald Trump presidency since Tuesday's election have taken to social media and to streets across the country to voice their displeasure.

The real estate mogul and former reality television star has secured enough electoral votes to become president-elect.

But there is a last, incredible long shot that could still get Hillary Clinton into the White House on Jan. 20 -- a twist in the Electoral College.

Clinton led the popular vote by more than 337,000 as of Thursday evening, according to Associated Press results compiled by Google.

With the addition of Arizona's late-called race, Trump had 290 Electoral College votes to Clinton’s 228. Only Michigan and New Hampshire remain uncalled.

Under the U.S. Constitution, electors will meet in their respective state capitals on Dec. 19. In all states but Maine and Nebraska -- which split their votes by statewide popular results and individual congressional district -- the candidate who wins the popular vote traditionally gains all of that state's electoral votes.

The number of electoral votes per state is determined by the number of congressional districts plus one for each senator, for a total of 538.

But there is nothing in the Constitution that prevents any of the electors from refusing to support the candidate who won their state, or from abstaining. Twenty-nine states ban the "faithless elector" practice.

A petition on Change.org is pushing for electors to vote for Clinton instead of Trump. It had more than 175,000 signatures as of Thursday morning; by early evening, it had more than 1.4 million.

Part of the petition reads:

Mr. Trump is unfit to serve. His scapegoating of so many Americans, and his impulsivity, bullying, lying, admitted history of sexual assault, and utter lack of experience make him a danger to the Republic.

Secretary Clinton WON THE POPULAR VOTE and should be President.

Hillary won the popular vote. The only reason Trump "won" is because of the Electoral College.

But the Electoral College can actually give the White House to either candidate. So why not use this most undemocratic of our institutions to ensure a democratic result?

SHE WON THE POPULAR VOTE.

There is no reason Trump should be President.

"It's the 'People's Will'"

No. She won the popular vote.

"Our system of government under our Constitution says he wins"

No. Our Constitution says the Electors choose.

"Too many states prohibit 'Faithless Electors'"

24 states bind electors. If electors vote against their party, they usually pay a fine. And people get mad. But they can vote however they want and there is no legal means to stop them in most states.

It's rare for electors to defect or abstain.

Even in the 2000 election in which George W. Bush beat Al Gore by a razor-thin margin, no electors withheld their vote for Bush and gave it to Gore. Bush won 271-266 with one abstention.

Gore won the popular vote by more than 540,000 ballots.

The New York Times reported more than 99 percent of electors throughout history have voted as pledged.

KTLA's Melissa Pamer contributed to this article.