Primary preview: Scott Walker wants his old number two to avenge his loss, but Trump has other ideas

The primary season continues Tuesday as voters go to the polls in Connecticut, Minnesota, Vermont, and Wisconsin. We also have a special election on the tap in Minnesota’s 1st Congressional District to succeed Republican Rep. Jim Hagedorn, who died in February.

Below you'll find our guide to all of the top contests, arranged chronologically by each state’s poll closing times. When it’s available, we'll tell you about any reliable polling that exists for each race, but if we don't mention any numbers, it means no recent surveys have been made public.