be used. >> a democratic convention is about to begin in a police state. there just doesn't seem to be any other way to say it. >> the people of chicago and its mayor are proud to welcome a great political gathering of americans who come here to shape the future of a nation. and as long as i'm mayor of this town, there will be law and order in chicago. [ applause ] >> the two men who most still believe this is all about arrived in chicago today to begin their final drive for delegate votes. >> most of us were saying it just wasn't politically possible for mccarthy to overcome those who were pledged to humphrey. so there clearly needed to be another force. >> arriving now, senator george mcgovern of south dakota. >> mcgovern got into the race because there was a big hole in the anti-war side.