Companies headed by onetime Democratic mega-donor James Levin are under investigation by school officials for allegedly pocketing more than $1 million of $2.7 million in school fencing contracts, money intended for minority- and women-owned businesses, school officials said Thursday. Because of the alleged scheme, officials said they are moving to bar Levin, his parents and nine others--including representatives of four minority- or women-owned businesses--from doing business with the Chicago Public Schools for three years, the maximum possible penalty. Levin was notified of the allegations this week, and hearings were being scheduled for all 12 parties, officials said. Board of Education...