Obama slams Trump's 'rigged' election claims as 'dangerous'

I hate the delusional leftists at CNN. I shared this to show just how hypocritical they actually are. After all this "We need to take action!" talk, I wonder why this hacking issue, which was known in the summer of 2015, was not raised at this event. He is quoted as saying, "Because when you try to sow the seeds of doubt in people's mind about the legitimacy of our elections, that undermines our democracy. Then you are doing the work of our adversaries for them." Is that not now what the administration is doing? Moreover, why would he play down and not even mention that hacking was a real issue? I'm really trying to grasp the White House's intent on this fear mongering when they knew about it all along. Thoughts?