the stakes are high for the first republican primary debate of the campaign. we got a bit of a preview earlier this week when 14 of the 17 candidates took part in a republican forum. so what are some things to watch for tomorrow night? cnn politics and finance reporter m.j. lee joins us from cleveland to discuss. m.j., you say there are six things to watch. you say number one can jeb bush avoid stumbles. how important is this? >> hey, brianna. while there's a lot riding on donald trump and a lot of attention on donald trump tomorrow night, i think there are plenty of people who are really curious to see how jeb bush performs tomorrow night. we got a little preview tuesday night of the forum in new hampshire. and he didn't have his best performance. he didn't bring his a-game. he stumbled. people noted he seemed nervous and i think thursday night will be a way for him to prove to critics that he can perform better. he's obviously someone who