Ken Doyle

FILE- This Wednesday, June 6, 2018, file photo shows U.S. currently in New York. Cash back is not just for credit cards. More apps and websites are offering ways to earn money on the stuff you buy, as long as you’re willing to sign up and make a few taps or clicks. (AP Photo/Ted Shaffrey, File)

An unresolved question: Can contractors contribute to candidates’ super PACs?

Where can contractors contribute politically, and where can they not? Bloomberg Government senior editor Ken Doyle has been following this question closely,…

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