Robert Muller’s Russia investigation has long been thought of as the single biggest threat to President Trump. But is there another case building that could prove more costly? David Meyers speaks with Bloomberg's David Glovin on how inquiries into Trump's 2016 campaign are closing in.

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TicToc is a daily news podcast hosted by David Meyers (@davidfmeyers), produced at Bloomberg Worldwide HQ in New York City. You can follow up with us and watch our reporting @tictoc. If you like it, be sure to rate us on iTunes, and tell your friends