That seems to mean just that he was satisfied by the way the prosecutors had done their jobs, and was specifically not taking sides in the case. Could be wrong, though.
It comes out very bad and perhaps his best approach would have been to say “No comment” and kept it “No comment” but he stuck his foot in it by making two comments on the prosecutors and the trials before saying “No comment” and should clear the air at the very least in a very public way.
Yo sure could. The most honorable man in the Senate will destroy this Presidency.