There are limits on campaigns like that in the US as well. That's the problem with the Citizens United ruling - it broke some of that for us. The rules he was

There are limits on campaigns like that in the US as well. That's the problem with the Citizens United ruling - it broke some of that for us. The rules he was talking about though are more to do with the limitations on speech that can be considered insulting, transgressive or hateful. They also include constitutionality of political parties in general, disparaging the president, and many other things.