They’ve been interrupting his events for months.
Just the other day before Chicago, there was a massive incursion in his presentation, barging in pushing through the crowd.
Trump has been pretty laid back for the most part. Over one hundred rallies, numerous medium sized to large incursions, and he’s only said a few choice things that the media, Ted, and FReepers can pounce on.
Go Trump go...
Trump can demand that they be arrested and since there is Secret Service at these events the protesters can be charged under federal law hence committing felonies.