"As I said in June, a president is free to fire any subordinate," Levin said. "He is in the Constitution. The subordinates are not. He is free to fire any subordinate for any reason. It's not possible to be obstruction of justice when you are complying with your constitutional responsibilities. Moreover, as I've said a thousand times -- one second before Trump fired Comey, the Democrats were howling like a bunch of hyenas demanding that Comey be fired. If Hillary Clinton had been elected president of the United States and fired Jim Comey, they'd give her a ticker-tape parade."