Asked if Trump should release his tax returns, Sen. Lindsey Graham of South Carolina told CNN on Thursday, “Yeah, I think everybody should. I’ve said that for a long time.”

Graham has sought to make financial disclosure an issue in his reelection by releasing 11 years of state and federal tax returns for press review and demanding that his Democratic opponent, Jaime Harrison, do the same. “What is he hiding?” Graham tweeted last Saturday.

Harrison has since released the details of several years of past tax returns. South Carolina newspaper The State reported earlier this week that after asking both campaigns for candidate tax returns, Harrison’s campaign let the newspaper review his returns from 2012 through 2018.