The seat has been vacant since former Rep. Sean Duffy resigned in September
Includes polls from three of the four states with the largest delegate pools available that day.
The former NYC mayor trailed only Bernie Sanders in the poll from NPR/PBS/Marist
There's little suspense in a state Trump carried by 30 points in 2016. We also take a look at the high-profile race involving Sen. Mitch McConnell
The Vermont Senator received 25% support, with the former vice-president at 18%