This is becoming vexatious. He's repeating the same thing over and over despite your asking him not to be repetitive in his arguments.
Mr. Chair, you can allow this and Mr. Lauzon's making a farce of himself as much as he wants, but you cannot allow this committee to become a farce of its own. Please enforce our rules. If he's using the same arguments over and over—contrary to your ruling—you should simply take the floor from him.