Florida, Ohio, Missouri, Illinois and North Carolina are all on the line.

Settle in for all-night coverage of Super Tuesday II, starting at 7:00pm ET as Bret Baier and Megyn Kelly host "America's Election Headquarters."

Martha MacCallum will analyze the exit polls, while Bill Hemmer takes you deeper inside the results in each state.

"The Campaign Cowboys" - Chris Wallace, Joe Trippi and Karl Rove - will have must-see analysis as the results come in, along with Dana Perino, Brit Hume, Steve Hayes and Juan Williams.

At 11:00pm ET, The Kelly File, takes a look at the state of the race with Mike Huckabee, Marc Thiessen and more, followed by a special election night edition of The Five at midnight.

Eric Shawn and Heather Childers will follow with coverage through the morning. 

Here's where the race stands and what's at stake:  

Donald Trump has amassed 90 more delegates than Ted Cruz. 

Trump has had a big lead in the polls in Florida, where the winner will get all 99 delegates. 

The winner of Ohio will secure all 66 delegates. Trump and Ohio Gov. John Kasich are in a tight race, according to the latest polls. 

North Carolina (72 delegates), Illinois (69) and Missouri (52) will award delegates proportionally. 

On the Democratic side, Hillary Clinton leads in delegates by a margin of 1,231 to 566, with 2,383 needed to secure the nomination. 

Polls show the former secretary of state with big leads in Florida and Ohio. 

See how it all shakes out on Fox News Channel, starting Tuesday at 7:00pm ET on "America's Election Headquarters."