The professor who foresaw President Trump's 2016 election win has a new prediction: Trump will be impeached.

Allan Lichtman, who teaches history at American University, believes that Trump is more vulnerable to impeachment than "any other president in the history of the nation."

In an interview on MSNBC's "Morning Joe," Lichtman said there are already grounds for impeachment due to Trump's conflicts of interests surrounding his family's businesses.

"Trump just got all of these trademarks from China, right after he seemed to have switched off of his approach to Taiwan," Lichtman said. "And I just read that Ivanka Trump got a bunch of trademarks in China."

He said Trump's "huge mistake," which makes him so vulnerable to impeachment, is that he didn't fully divest himself from his business interests.

He added that Trump could also be impeached for his campaign's "collusion" with Russia, depending on what the ongoing investigations uncover.

Unlike his election prediction, Lichtman said his impeachment theory isn't based on a formal methodology.

Instead, Lichtman said he did a "deep study of history," looking at the parallels between Trump and the two presidents who have been impeached: Andrew Johnson in 1868 and Bill Clinton in 1998.

He also compared Trump to Richard Nixon, who resigned in 1974 before the House of Representatives could impeach him.

Lichtman said he's not advocating impeachment right now, but he does believe it's "very likely."

He added, however, that Trump can "change his ways" to avoid impeachment.

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