David Bowser was charged with using nearly $44,000 of congressional office funds of his former boss, former Georgia Republican Congressman Paul Broun, to pay one of Broun’s campaign consultants, according to the Athens Banner-Herald. Bowser was also charged with obstructing a congressional investigation and making false statements.

Politico reporter John Bresnahan broke the news of the resignation on Twitter Thursday.

/1 David Bowser, chief of staff for @RepMimiWalters, has resigned following indictment on federal criminal charges, per her office.

— John Bresnahan (@BresPolitico) April 7, 2016

/2 Bowser was indicted for alleged campaign finance violations, making false statements, lying to OCE while working for ex-Rep. Paul Broun

— John Bresnahan (@BresPolitico) April 7, 2016

Walters, an Irvine Republican, was elected to Congress in 2014, after years in the state Legislature.

“David Bowser tendered his resignation on April 6, 2016,” according to a statement issued by Walters’ office. “The charges against him involve incidents alleged to have occurred in the office of former Georgia Congressman Paul Broun in 2012-2014, before Rep. Walters became a member of Congress.”

This story has been updated to include the statement from Walters’ office and to correct the day of Bowser’s resignation.