Again, not true. It was nothing to do with "pre-crimes". The people who were banned from travelling to Russia had previously been convicted of football violence

Again, not true. It was nothing to do with "pre-crimes". The people who were banned from travelling to Russia had previously been convicted of football violence related crimes. Also regarding the protests - it really depends on your definition of effective. I don't think anyone thought they were going to topple the Trump presidency by protesting when he visited. They were just expressing that they believed he was not welcome here. And given the media coverage and the comments from the man himself I'd say they were quite effective.