This has not been verified on Snopes or any other fact-checking site because, quite frankly, it doesn't matter whether it's true or not.
A comerly lass, while playing golf, took a big swing, lost her balance, and fell. The foursome behind her was comprised of 3 Democratic strategists and the President himself. Obama quickly stepped forward and helped her to her feet.
She politely thanked him and began walking away, when his royal highness quickly interjected, "I'm President Obama and I hope you'll vote for me this November."
She laughed and, without batting an eye, simply replied, "I fell on my ass, not on my head!"