Former President Barack Obama admitted Friday that it had been a “mistake” not to support Iranian democracy protesters in 2009, when they rose up against their tyrannical regime in what was called the “Green Revolution.” At the time, Obama chose to remain quiet about the protests, as he hoped to preserve the regime, and the administration of radical, Holocaust-denying Mahmoud Ahmadinejad, in the hope of pursuing negotiations toward a deal on Iran’s nuclear weapons program.