The gaffe of the week goes to John McCain, when in an interview with Politico.com he was unable to remember how many houses he has.

Folks of all political stripes who read this blog will probably be willing to give Senator McCain a little slack on this one. We’re real estate investors and we buy and sell properties. We might not have married a $100 million heiress like Senator McCain (or made $4 million off a lucrative book deal like Senator Obama, for that matter) but we can understand how LLC’s and partnership purchases might turn a seemingly simple question into one that can be a little more tricky.

So my concern is not that Senator McCain was unable to rattle off the right answer. My concern was his startled, confused reaction. His rambling, mumbling response: "I think -- I'll have my staff get to you -- um -- its condominiums where -- I'll have them get to you.” In today’s complex world the ability to think on your feet and stay on message is an important prerequisite to being the President of the United States of America. The fact that Senator McCain was so visibly unhinged by this question will worry some voters.

I don’t’ think that the average American begrudges Senator McCain family their $100 million fortune; Americans don’t resent wealth – we aspire to it. But folks who are struggling to make ends meet want to feel that the President understands their challenges, and those who have invested in the ownership society want a leader who will get the economy back on the rails. When Senator McCain facetiously quipped last week that $5 million per year is the cutoff for being wealthy, a lot of folks felt left out of the joke.

I feel that we facing an immediate future of complex economic challenges – one in which prudent real estate investors will be comparatively well positioned. But in the end the returns that we realize will be linked closely to the fortunes of our fragile economy, which in turn will be heavily impacted by gas prices and – ultimately - oil.

Oil is an international fungible commodity, and therefore oil prices – the single more important driver in our economy – will be largely outside of our control. The biggest factor in what will happen with oil prices lies in direction of international stability, or lack thereof. Neither party talks much about this particular elephant in the room – the reason being that both parties realize, rightly, that there isn’t much that we can do about it. Our recent adventure to send our Armed Forces to the Middle East to spread freedom and democracy isn’t entirely to blame, but it has been an exacerbating factor that has undoubtably made things worse and weakened our influence, both politically and militarily.

In the future there will be a link between what we do overseas and our economic fate here at home – and it’s a new relationship that will be strikingly different from what we’ve seen in the past. As retired Army Colonel and Niebuhr scholar Andrew Bacevich writes in his excellent book The Limits of Power, our economy can no longer be sustained by expansion abroad enforced by our military. As a former military officer myself this is a new way of thinking. I now tend to put less of a premium on “experience” as traditionally defined; I want a leader who can see the new patterns as the world continuously rewrites the rules.

So while I can forgive Senator McCain the fact that he doesn’t know how many houses he has, I am more concerned about the prospect that having spent decades as a fabulously wealthy United States Senator has dulled his ability to identify the shifting currents of the new world economy.