According to the Obama campaign, they have “studied historical weather patterns” and were “confident that it would not rain” in Denver during Barack ObamaBarack Hussein ObamaKrystal Ball tears into 'Never Trump' Republicans Sanders campaign announces it contacted over 1 million Iowa voters Iowa Steak Fry to draw record crowds for Democrats MORE’s convention acceptance speech.”

Obama has a mystical connection with the weather, or is it the weatherman?

As Bob Dylan sings in “Subterranean Homesick Blues”:

Maggie comes fleet foot/Face full of black soot
Talkin' that the heat put/Plants in the bed but
The phone's tapped anyway/Maggie says that many say
They must bust in early May/Orders from the DA
Look out kid/Don't matter what you did
Walk on your tiptoes/Don't try NoDoz
Better stay away from those/That carry around a fire hose
Keep a clean nose/Watch the plainclothes
You don't need a weatherman/To know which way the wind blows

Of course, the Weather Underground is a little bit of a sticky subject for Barack Obama. He had his first political fundraiser, ever, at the home of Bill Ayers and Bernadine Dorn.

They were the domestic terrorists of the 1960s and ’70s who fancied themselves revolutionaries ala Che Guevara. They set off bombs at universities, landmarks and even the Pentagon.

Ayers famously said, three years before John McCain was released from the Hanoi Hilton, "Kill all the rich people. Break up their cars and apartments. Bring the revolution home, kill your parents, that's where it's really at."

Perhaps Obama’s “modern refinement” to the Ayers program is his plan to increase taxes on all rich people and anybody else who has a job.

Ayers also said this, a year before McCain came home from Vietnam: “Everything was absolutely ideal on the day I bombed the Pentagon. The sky was blue. The birds were singing. And the bastards were finally going to get what was coming to them.”

For those who believe that this all happened a long time ago, The New York Times quoted Mr. Ayers on Sept. 11, 2001: “'I don't regret setting bombs,'' he said. ''I feel we didn't do enough.''

The New York Times on Sept. 11, 2001? Sometimes you just have to shake your head in wonder.

Of course, now that Bill Ayers has become a political liability for Mr. Obama, the junior senator from Illinois has distanced himself from the former domestic terrorist.

Mr. Ayers has become politically incorrect.

This is a familiar pattern for Mr. Obama.

Obama first sees Jeremiah Wright as his spiritual mentor, the man who brought him to Christ. But after a few revelations spill out about the Reverend Wright’s actual beliefs (the chickens have come home to roost), Obama’s spiritual advisor quickly becomes the crazy uncle that he can’t control.

Mr. Wright became politically incorrect.

Tony Rezko, a convicted felon and early benefactor of Mr. Obama’s political career goes from being a good friend to — as Obama put it — “not the Tony Rezko I know.”

Mr. Rezko became politically incorrect.

But this isn’t just about personalities.

It is also about policies.

Public financing is good until it is not so good.

Gun laws are good until they are not so good.

Terrorist surveillance legislation needs to be filibustered until its needs to be approved.

And now, the troops need to be removed immediately from Iraq and will be in 16 months in an Obama administration, until, well, they may have to stay.

It all reminds me of that great scene in “Casablanca,” between Conrad Veight playing Maj. Strasser and Claude Rains playing Maj. Renault.

Strasser: I'm not entirely sure which side you're on.
Renault: I have no conviction, if that's what you mean. I blow with the wind, and the prevailing wind happens to be from Vichy.
Strasser: And if it should change?
Renault: Well, surely the Reich doesn't permit that possibility.

What are Barack Obama’s true convictions?

Perhaps that answer, as Bob Dylan famously sang, is blowing in the wind. The answer is blowing in the wind.