We've had a full two months for election irregularities to be litigated in the courts, and scrutinized in the court of public opinion. The only results that bubbled to the top were the same oft-repeated grand claims, without much of anything backing them up. If there were substantive arguments to be made, Trump's legal team has failed to present them. At this point two months later, the "fraud" narrative is nothing more than a rallying cry. So yes, continuing to push the fake fraud claim is direct incitement of that mob.