President Trump speaks at the National Republican Congressional Committee March Dinneron Tuesday. (AP Photo/Andrew Harnik)

Did you know President Abraham Lincoln was a Republican? President Trump apparently thinks most people don’t.

“Great president,” Trump said Tuesday night at a fundraising dinner for House Republicans. “Most people don’t even know he was a Republican. Right? Does anyone know? A lot of people don’t know that. We have to build that up a little more.”

Trump then suggested using a political action committee to run advertisements letting people know that Lincoln was a member of his party.

Republicans frequently refer to themselves as “the party of Lincoln.”

A poll from a few years ago discovered that most people do know that Lincoln was a Republican.

In 2012, Pew Research surveyed Americans to gauge their knowledge of our political system and asked this question: To what party did Lincoln belong? More than half, 55 percent, said Republican. Only a bit over a quarter said Democratic.

Trump brought up Lincoln in the middle of a pitch to invest in infrastructure across the United States, echoing one of his campaign promises.

“Our first Republican president, Abraham Lincoln, ran his first campaign for public office in 1832 when he was only 23 years old,” Trump told the National Republican Congressional Committee’s March fundraiser.

“He began by mentioning the benefits a railroad could bring to … Illinois without ever having seen a steam-powered train,” Trump said. “He had no idea and yet he knew what it could be. Thirty years later, as president, Lincoln signed the law that built the first transcontinental railroad from ocean to ocean.”

Republican congressional leaders have said they plan to consider Trump’s infrastructure plans after debating health-care legislation and tax reform, though some in the party remain wary of being labeled big spenders.