At the convention itself, Senator Abraham A. Ribicoff went off-script during his speech nominating George McGovern, saying, "And with George McGovern as President of the United States, we wouldn't have to have Gestapo tactics in the streets of Chicago. And with George McGovern as president, we wouldn't have to have a National Guard." Ribicoff, with his voice shaking, then said: "How hard it is to speak the truth, when we know the problems that are facing this nation", for which some in the crowd booed Ribicoff. Ribicoff also tried to introduce a motion to shut down the convention and move it to another city. Many conventioneers applauded Ribicoff's remarks but an indignant Daley tried to shout down the speaker. As television cameras focused on Daley, lip-readers later said they observed him shouting, "Fuck you, you Jew son of a bitch, you lousy motherfucker, go home!" Defenders of the mayor later stated that he was calling Ribicoff a faker, a charge denied by Daley and refuted by Mike Royko's reporting. A federal commission, led by local attorney and party activist Dan Walker, investigated the events surrounding the convention and described them as a "police riot". Daley defended his police force with the following statement, which was also a slip of the tongue: "The confrontation was not caused by the police. The confrontation was caused by those who charged the police. Gentlemen, let's get this thing straight, once and for all. The policeman is not here to create disorder. The policeman is here to preserve disorder."