Donald Trump commits one of golf's cardinal sins

Marta Lavandier/AP PhotoRepublican presidential candidate Donald Trump drives himself to the golf course to watch the final round of the Cadillac Championship golf tournament, Sunday, March 6, 2016, in Doral, Fla.Anyone with at least a passing familiarity with golf etiquette knows there are a few main rules.

You don't talk in another player's backswing. You replace divots. And if you're riding in a cart, you sure as heck don't drive it on the green.

President Donald Trump found himself in violation of the third rule during a recent round at the golf club he owns in Bedminster, New Jersey.

As you can see in the damning footage, Trump drove to the middle of the green, allowing a playing partner to return his putter to his bag. He then headed down a ridge onto the cart path, exchanging pleasantries with the person filming. Trump then lamented the lapse in security while offering fist pounds to a pair of unseen recipients.

"It's the only place you can drive on the green, right? Your own golf course?" the filmer mused as Trump approached.

Watch the full 30-second video here, courtesy of Mike Frank:

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