A volunteeer holds a "Vote Uncommitted" sign outside a polling station in Dearborn, Michigan, on February 27.
Mandatory Credit:	Nic Antaya/Bloomberg/Getty Images via CNN Newsource

A volunteeer holds a "Vote Uncommitted" sign outside a polling station in Dearborn, Michigan, on February 27.
Mandatory Credit: Nic Antaya/Bloomberg/Getty Images via CNN Newsource

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Takeaways from the Michigan primaries

Joe Biden and Donald Trump won their respective primaries in Michigan on Tuesday, but a glance under the hood of the results reveals serious concerns for both campaigns as they pivot to a likely November rematch that is looking more volatile by the day.Joe Biden and Donald Trump won their respective primaries in Michigan on Tuesday, but a glance under the hood of the results reveals serious concerns for both campaigns as they pivot to a likely November rematch that is looking more volatile by the day.