Will Ted Cruz and Marco Rubio continue to cut into Donald Trump's lead? Can Bernie Sanders stop Hillary Clinton's momentum? Four states are holding contests for the GOP nomination, while two states are holding contests on the Democratic side.
The biggest prize of the night for both parties is Michigan. Michigan carries 59 delegates on the GOP side and 148 on the Democratic side.
Stay tuned below for the latest updates from our Democracy 2016 team.
States up for grabs:
States with projected winners:
No winners have been projected.