Former President Donald Trump, and some people in his orbit, have taken to demanding to know why his former attorney and fixer Michael Cohen has not been subject to a gag order in the Manhattan criminal hush money case, whereas Trump has. But it doesn’t really work that way, legal expert Lisa Rubin explained to MSNBC’s Joy Reid, in a panel alongside former federal prosecutor Andrew Weissmann, for a couple of reasons. “Judge [Juan] Merchan made that point when this was raised, saying, I don’t have power over all of the United States,” said Weissmann. “You are a defendant. That is why there is a…