A rally is a loud place, and every large event draws someone who wants to be heard over the crowd. Supporters answered with volume, and the interruption was over in seconds.

Free speech protects the right to protest outside, and organizers of any gathering have the right to run it on their own terms. Disruption that stops others from hearing the speaker is a different thing from dissent.

What lasts after the noise fades is the work ahead. Voters in Kansas will decide in November, and the crowd’s enthusiasm only matters if it turns into ballots.