Sen. Kyrsten Sinema (I-AZ) isn’t running for reelection, but campaign finance records show she has spent hundreds of thousands of dollars in campaign cash on travel.

In total, her campaign spent more than $650,000 between July 1 and Sept. 30, including $216,000 on travel and $152,000 on security-related expenses. While the campaign finance report does not detail exactly where she went or the purpose of her travel, her previous travel habits have sparked ethical complaints from critics.