Who is Steve Bannon, the former Trump advisor facing charges he duped donors on border wall project?

Former Trump White House chief strategist Steve Bannon is expected to turn himself in Thursday on charges he deceived donors who gave money to build a wall along the southern U.S. border.

Here is what you need to know about Bannon's political significance.

Bannon legal troubles: Trump ally Steve Bannon's legal troubles: From border wall fund to Jan. 6 contempt

Who is Steve Bannon?

Steve Bannon was the White House chief strategist during the first seven months of former President Donald Trump's term. Bannon was also an adviser to Trump's 2016 presidential campaign against former Secretary of State Hillary Clinton. He left the White House in 2017.

Bannon faces criminal charges: Trump ally Steve Bannon expects to face new criminal charge in New York

What is his connection to Trump?

Bannon stayed in contact with Trump after he left the White House.

Why is he potentially in legal trouble?

Bannon said Tuesday that he is expected to be charged in a state criminal case in New York City. He plans to turn himself in Thursday, according to a person familiar with the matter. The person insisted on anonymity to discuss an ongoing investigation.

The Washington Post, citing anonymous sources, reported the state criminal case would resemble an earlier attempted federal prosecution in which Bannon was accused of duping donors who gave money to fund a wall on the U.S. southern border.

That federal case ended abruptly before trial when Trump pardoned Bannon.

Bannon was also subpoenaed last September by the House committee investigating the Jan. 6 Capitol attack, but refused to cooperate. The panel was looking for information about Trump's actions before, during and after the attack., Bannon declined to cooperate and was convicted of contempt of Congress in July.

Contributing: The Associated Press

This article originally appeared on USA TODAY: Steve Bannon: ex-Trump White House advisor has faced legal problems