This is a right wing opinion post but it contains two live video clips of Biden about 10 years ago and one today. The first shows him as articulate, well spoken and even funny. The second shows him speaking as he appeared on the current campaign. Confused about what he is running for and not knowing where he is. I don't think it's just a slip of the tongue. As much as I wouldn't want Sanders to be nominated, Biden appears to be suffering from dementia or worse.