Ernie stating Nixon as its favorite president is not really surprising. This is a common opinion among those in mainland PRC. Nixon and Kissinger are perceived as good guys that helped open up China to the West. When I have asked people in the PRC about Watergate, the common response is that the Watergate break-in was an internal issue for the US to deal with.
And was not an internal US issue? Or what are you expecting the answer to be? Should've be that was an external issue and UN should've been involved in it?