Brooklyn, and more broadly New York City, is personal for both Democratic contenders.
The Miami contest comes ahead of the crucial March 15 Florida primary.
The two Democrats will face off in a debate, and Marco Rubio will participate in a one-man town hall.
The candidates met Thursday in Detroit, which is 70 miles from the ongoing water crisis in Flint, Michigan.
The forum is the first since Donald Trump scored multi-state wins on Super Tuesday.
At the debate on Thursday night, Trump said he is the only candidate who has hired people.
The forum is the only debate sanctioned by the Republican National Committee to be aired by a Spanish-language network.
Former Virginia Governor Jim Gilmore is the only GOP candidate who didn't earn a spot onstage.
The two candidates will meet tonight at the University of Wisconsin-Milwaukee.
The GOP front-runner opted out of the main debate and instead hosted a fundraiser.
Eleven GOP candidates, not including Donald Trump, will meet face-to-face for the last time before the Iowa caucuses on Monday.
From foreign policy and taxes, to the Second Amendment and healthcare, the candidates didn't leave out many topics as a way to criticize Obama.
The Kentucky senator is boycotting the undercard GOP debate after he was demoted from the prime-time stage.
The announcement came amid speculation that the former Maryland governor might not secure a spot on stage.
The first GOP debate of the 2016 presidential year will be available online without a cable subscription.
Trump said he influenced the network's decision to cut the New Hampshire paper from the debate.