No I'm not speaking about him being hot, trendy, fly or what ever other word is currently synonomous with "cool" but that he is calm and unflappable in almost any situation.
Even in the midst of McCain's lies about calling Palin a pig or Obama wanting to "teach give sex education to kindergarteners" Obama did become agitated but not crazy with anger and he soon retruned to his smooth, cool demeanor.
Hillary Clinton raised a question in the primary: Who would you want answering the phone at 3 AM during a crisis? Obama has shown superior judgement on foreign policy (McCain thinks that Iraq and Pakistan share a border and Spain is in Latin America for example) but what's more his demeanor suggests that he would respond intelligently and rationally to an emergency while McCain's demenor seems to suggest a willingness to "nuke first and ask questions later."
This week's economic crisis demonstrated the stark differences between the two nominees. Obama had a plan already and was willing to lead while McCain was flustered and changed poistions faster than a Chinese Gymnast on crack.
If we do have a crisis would you rahter have a cool rational leader or an unpredictable, hair trigger "cowboy" kleading our nation?