It seems to me that BO could not maintain this unshakeable calm were he not an exceptionally grounded, centered, and spiritual person.
First of all what does it mean that Senator Obama is a spiritual person? Let us remember being spiritual is not synonymous with being a Christian (a Christ Follower). So it doesn't impress me that he might be a spiritual person, after all Oprah is a spiritual person and I think she is dangerous.
Second is the reality that a calm demeanor is product of many different things. I am for the most part a calm guy. I remember a time in college when guys messed up stuff in my room just to see me get angry, because they never had seen me lose my cool (which I didn't then either, partly because I knew what they were up to). I attribute my calmness to my personality more than my spirituality. So it is by no means an indicator of a spiritual person.
Third, it is a superficial reason to support a candidate for president (I realize that Tony Jones has other reasons for supporting Senator Obama). Shouldn't we support a candidate based on his/her agenda? That is why I am not supporting Senator Obama or Senator McCain, I think they are both equally bad for the United States, because of their big government solutions.
"Hey, I am supporting the guy with the calm demeanor!" No wonder our country is in trouble.
A couple more thoughts I had about the calm demeanor of Senator Obama while I was walking my dog. If Roger Hedgecock is right, perhaps Senator Obama's demeanor masks a passive-aggressive bent that people wouldn't want to cross.
During the primaries Governor Mitt Romney was running on the Republican side of things and I think people would look at Governor Romney as a calm, got-it-together type of guy. My problem with Governor Romney was I never felt like I could trust him, he seemed to be a snake oil salesman. I get the same feeling from Senator Obama. So perhaps his calm demeanor comes from the fact that he is running a con?