Back on May 9, President Obama gave an exclusive interview to ABC’s Robin Roberts in order to explain his change of heart regarding gay marriage. Obama said his daughters were instrumental in helping him see the light: “Malia and Sasha, they’ve got friends whose parents are same-sex couples…And Malia and Sasha would – it wouldn’t dawn on them that somehow their friends’ parents would be treated differently. It doesn’t make sense to them. And – and frankly – that’s the kind of thing that prompts – a change of perspective. You know, not wanting to somehow explain to your child why somebody should be treated – differently, when it comes to – the eyes of the law.”

We sure hope Malia and Sasha start talking to their dad about marijuana because they’d be equally hard-pressed to unravel his reasoning on this issue as well – especially in light of David Maraniss’s new biography on the Prez. Maraniss is the highly regarded author of bios on Bill Clinton, Vince Lombardi, Roberto Clemente and others. In Barack Obama: The Story, the Pulitzer Prize-winning author unearths details of the President’s pot-smoking days making it clear that he was once a serious stoner.

Grow guide for marijuana beginners.

According to friends: “When a joint was making the rounds, he often elbowed his way in, out of turn, shouted ‘Intercepted!’ and took an extra hit,” Maraniss writes. Obama was also known for starting a trend called “TA,” short for “total absorption.” “When you were with Barry and his pals, if you exhaled…instead of absorbing it fully into your lungs, you were assessed a penalty and your turn was skipped the next time the joint came around.

Obviously, the President is no stranger to the harmless camaraderie pot engenders. And certainly he’s capable of changing his mind on issues that Americans care deeply about – especially when polls show that a majority of Americans favor such change. What will it take to change Obama’s pot policy? A lecture from his daughters? An opportunity to score political points on the campaign trail? We’ll take either.