KEY POINTS
  • Three Senate Democrats running in the Midwestern states of Wisconsin, Michigan and Minnesota hold comfortable leads in their bids for re-election, according to NBC News/Marist polls. 
  • Tammy Baldwin, Debbie Stabenow and Tina Smith also have big fundraising cushions against their Republican challengers. 
  • President Donald Trump narrowly won both Wisconsin and Michigan in 2016. 
Sen. Tammy Baldwin, D-Wisc., arrives in the Capitol for the Senate Democrats' policy lunch on Tuesday, May 15, 2018. 

Senate Democrats defending their seats this year in three key Midwestern states have double-digit leads in new polls released Thursday to go along with a massive fundraising edge.

Incumbents seeking re-election in Wisconsin, Michigan and Minnesota hold comfortable edges with a little more than three months before November's midterms, the NBC News/Marist polls found. The numbers back up the perception that the races — two of which will take place in states President Donald Trump narrowly won in 2016 — may be out of reach for the GOP as it tries to keep or expand its Senate majority on a favorable electoral map.