We had such great turnout for our past two live blogs during the presidential and vice-presidential debate that we're doing it again for tonight's presidential debate between Barack Obama and John McCain
Everyone is welcome to participate! You don't need to do anything now, just come back to Lynn Sweet's blog before the debate gets going (9 p.m. Eastern). We'll start the chat 30 minutes before the debate, and keep it going until 30 minutes after it's over. You can join the discussion at any point during that time frame -- and you can sign up for a reminder at left.