neon oasis in the desert at the wynn resort in las vegas, nevada, which will elect delegates february 20th after iowa and new hampshire. nevada hosts the first democratic debate tomorrow night in sin city. five candidates will pony up to the stage. is it possible that vice president joe biden will join the show? we have a lectern for him, but how realistic is a biden appearan appearance? let's bring in cnn senior white house correspondent jim acosta. jim, there will not be a better moment for the vice president to enter the race than tomorrow. excitement in the air. he goes out there, does his little thing with the -- you know, shoots his guns to the people in the audience. >> i can see it now. >> takes off the stage. >> i agree. fire up air force two, point it in this direction but. >> all indications at this point he's not going to run for president. he may run for president but not show up at this debate tomorrow night. he is the x factor looming over