U.S. Rep. Jim Hagedorn has fired his chief of staff after a spending spree on taxpayer-funded communications.

The congressman, who represents Minnesota’s 1st District, spent almost 40% of his office’s annual expense allowances in the first quarter of this year.

That outpaced all of his colleagues in the House, according to Legistorm, a firm that tracks the allowances.

About half of Hagedorn’s spending was on printing and mailing correspondence, totaling about $270,000.

His office confirmed that Peter Su, who had served as chief of staff since he took office, has been fired.