Tuesday's debate at Hofstra University between President Barack Obama and Republican candidate Mitt Romney kicks off at 9 p.m. and runs to 10:30 p.m.
Candy Crowley, CNN's chief
political correspondent, will moderate. Citizens will ask questions of the candidates on foreign and
domestic issues; candidates each have two minutes to respond. An additional minute will be given to the moderator to facilitate a discussion.
Here are six things to know today, Tuesday, Oct. 16, ahead of the debate: