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Rep. Michael Grimm expected to plead guilty in court

New York Rep. Michael Grimm is expected to plead guilty to one count of tax fraud on Tuesday in Brooklyn federal court.

New York Rep. Michael Grimm, who was previously charged with hiding more than $1 million in wages and income from a Manhattan restaurant that he co-owned, is expected to plead guilty to one count of tax fraud on Tuesday in Brooklyn federal court, NBC News has confirmed.

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The Republican has been under investigation for more than two years for malicious leaks, violations of grand jury secrecy, and strong-arm tactics. The House Ethics Committee began an investigation of the congressman last November over possible campaign finance violations. Grimm, who was once viewed as a rising GOP star, turned himself in to the FBI in April. He was indicted on 20 tax-fraud charges. Grimm still faces charges of mail, wire, and health care fraud, as well as perjury and obstruction of official proceeding, related to a private business deal he made before he was elected.

The New York Daily News first reported the story on Monday afternoon. Grimm's office didn't immediately respond to msnbc's request for comment. Grimm's attorney, Daniel Rashbaum, responded to NBC via email and said that they have no comment at this time.

Grimm is scheduled to be in Brooklyn federal court at 1 p.m. on Tuesday, according to online court records.

Despite the looming federal indictment, Grimm won re-election to his Staten Island congressional seat last month during the midterm elections. Following President Obama's State of the Union address in January, Grimm was caught on camera physically threatening to “break” a New York reporter “in half, like a boy.”