Barack Obama hasn’t endorsed a Michigan Senate candidate. An AIPAC-linked group is spending millions on ads with him anyway

By David Wright, CNN (CNN) — Former President Barack Obama hasn’t endorsed in the contentious Democratic Senate primary in Michigan – but voters there could be forgiven for getting that impression. Supporters of Rep. Haley Stevens have spent $5 million airing an advertisement nearly 4,000 times that features Obama praising her work as chief of