Presumptive Democratic Party nominee Barack Obama admits that he has no executive experience of any kind, and hence lacks a fundamental qualification to be president.

In fact, all the most recent presidents (Bush Jr., Clinton, Bush Sr., Reagan, Carter, Nixon) have had not only substantial executive experience but significant elected executive experience (they’ve either been governor or vice president).

But Mr. Obama sets us a challenge: Look, he says, running a national campaign for president is a great executive challenge. So, if I show you I can do that well, you should be willing to give me a chance in the Oval Office.

Let’s put aside for the moment the fact that this is total nonsense, and take him at his word.

Today, the New York Times reports that no sooner had Obama secured the Democratic nomination and named the head of a committee to recommend a vice presidential running mate then he was forced to accept the resignation of that choice, James A. Johnson, due to charges of corruption. The Times reports:

Mr. Johnson, who also directed Senator John Kerry’s vice presidential search when he was the Democratic nominee in 2004, had come under fierce scrutiny in recent days after disclosures that he had received mortgage loans on favorable terms from Countrywide Financial, the beleaguered mortgage lender. His large paychecks and bonuses while president of Fannie Mae, the quasi-public government mortgage agency, also drew heavy Republican criticism. Mr. Obama had defended Mr. Johnson as recently as Tuesday, saying that he had only a “tangential” role in his campaign and that he was not troubled by his business activities. He said he had not inquired about his mortgages and would not hire people to, as he put it, “vet the vetters.”

In other words, Obama was a total failure at the very first thing he tried to do in order to begin his campaign. And when his mistake was pointed out, he didn’t immediately correct it, but continued making it in bull-headed fashion — just the same thing he did when confronted with the outrageous conduct of his freakishly racist preacher Jeremiah Wright.

This is, to put it bluntly, exactly what you would expect from someone with no executive experience. He’s never done anything like this before, so he’s going to make plenty of mistakes. Is that really the person you want negotiating on your behalf with demonic liars like Vladimir Putin or Mahmoud Ahmadinejad?

Obama refuses to release his birth certificate, fueling rumors that it contains embarrassing facts about his given name.

A key financial supporter from Illinois, Tony Rezko, has just been sent to prison for corruption.

He’s out of touch with reality and can’t even control his own campaign workers.

He’s not qualified to be president, and he shouldn’t be. If he becomes president anyway and turns into a disaster, he could set the cause of black civil rights back twenty years.