CHICAGO (AP) — The practice of U.S. corporations reorganizing with foreign entities overseas to reduce taxes back home has emerged as an issue in Illinois’ gubernatorial race, with Gov. Pat Quinn strongly condemning the growing trend as “unpatriotic” on Wednesday and questioning his Republican challenger’s stance on the issue.

Quinn, a Chicago Democrat, remains locked in one of the most competitive governors’ races nationwide with a challenge from Bruce Rauner. The venture capitalist says Illinois and the U.S. need to do more to compete for business, but his campaign wouldn’t say Wednesday if he supported or rejected the practice of companies reorganizing abroad.