tiffany trump
Fashion editors at the New York Fashion Week refused to sit beside Tiffany Trump during the Philipp Plein show, Feb. 13, 2017. Tiffany is pictured here at Trump Tower in New York, Jan. 19, 2017. Stephanie Keith/Reuters

Could Donald Trump’s younger daughter, Tiffany, be one of those 3 million to 5 million illegal voters he was talking about?

Heat Street reported Tiffany Trump is registered to vote in two states, Pennsylvania and New York.

What about White House strategist Steve Bannon. He’s registered to vote in both Florida and New York, the Sarasota Herald-Tribune reported.

Fred Voigt, Philadelphia’s deputy election commissioner, said being registered in two places is not illegal as long as an individual doesn’t vote in both jurisdictions.

Records indicate Tiffany Trump voted in New York this past election while Bannon cast an absentee ballot in New York. Neither voted twice.

How do people wind up registered in multiple places? They move, and voter registration rolls don’t get purged often enough.

President Trump won the Electoral College but lost the popular vote to Hillary Clinton by nearly 3 million ballots. He told congressional leaders earlier this week illegal voters had cost him the popular vote despite no evidence to back up that statement.

He has made that claim before.

"It’s a belief he maintains," White House spokesman Sean Spicer told reporters. "A concern that he has about voter fraud, that’s based on information that’s been provided."

Trump is known to be a fan of the conspiracy website Infowars.

A 2012 study by the Pew Research Center indicated as many as 12.5 percent of voter registrations in the U.S. were inaccurate or no longer valid, but there was no evidence of vote fraud as a result, said David Becker, who authored the study. In fact, he tweeted Tuesday, there was “zero evidence” of fraud in 2016 balloting.

That hasn’t stopped the president from demanding an investigation.

House Speaker Paul Ryan, R-Wis., told MSNBC Wednesday an investigation is OK with him.

“If he believes there's a problem to be looked at, the right thing to do is get an investigation, to get the facts,” Ryan said. “I haven't seen evidence of this kind of widespread numbers that we've been hearing about. The thing to do is to get an investigation to get the facts and then make a judgment based on the facts.”

Lawmakers have warned Trump his claims are undermining the U.S. democratic process. Studies have indicated vote fraud is virtually nonexistent.

"I wasn't there [the reception where Trump made the claim], but if the president of the United States is claiming that 3.5 million people voted illegally, that shakes confidence in our democracy — he needs to disclose why he believes that," Sen. Lindsey Graham, R-S.C., told CNN on Tuesday.

"I would urge the President to knock this off; this is the greatest democracy on Earth, we're the leader of the free world, and people are going to start doubting you as a person if you keep making accusations against our electoral system without justification. This is going to erode his ability to govern this country if he does not stop it."