How does squealer squelch the wicked rumor that boxer was betrayed?

Squealer quells the rumor that Boxer was betrayed by spreading Propaganda and manipulating the truth. He insists that Boxer is being taken to a veterinarian for treatment, emphasizing the care the pigs are providing. Squealer also appeals to the animals' loyalty and trust in the leadership, claiming that the van carrying Boxer is merely misbranded. Through these tactics, he reinforces the idea that the pigs are acting in the best interest of all animals, effectively silencing dissent.