U.S. Labor Department officials may investigate complaints that Iowa Workforce Development Director Teresa Wahlert sought to sway appeals of unemployment benefit cases in favor of businesses, reports DesMoinesRegister.com. Wahlert denies the allegation and says department documents back her up, but a Democratic state lawmaker last month asked the U.S. Department of Labor to investigate, and an e-mail sent to Iowa Workforce Development this week indicates department officials are considering the request.