I did not see this and can find no dirt that Rudy revealed. What exactly did he claim he had on the Bidens? As far as I know all Rudy points to is a video of Biden saying at some event he told the Ukrainians to get rid of their corrupt prosecutor (which was the goal of the administration and the world, not Biden) and that is it. Which means Joe Biden was doing his job...period. That's definitely not evidence of Joe being corrupt...it's a joke. 

Did he present something else?