It's debate day!

Fifteen (of the 16) Republican candidates will be at the Ronald Reagan presidential library in Simi Valley, Calif., for back-to-back debates starting tonight on CNN at 6 p.m. Eastern time. The first debate — think of it like a JV basketball game — will feature the four candidates running worst in polls. The main debate will have 11 candidates on stage after CNN adjusted its rules to ensure that Carly Fiorina, who is moving up in the polls, made the cut.

With so many candidates, it's hard to know where to look at any given moment or to figure out who's doing well — and who isn't. That's where I come in! Below, using our handy-dandy social cards, is what each candidate needs to do in tonight's debates. (The candidates are listed in alphabetical order by last name.) Enjoy!

Jeb Bush

Ben Carson

Chris Christie

Ted Cruz

Carly Fiorina

Lindsey Graham


Mike Huckabee

Bobby Jindal

John Kasich

George Pataki

Rand Paul

Marco Rubio

Rick Santorum

Donald Trump

Scott Walker