The comments from the head of the senate are to be expected. He is courting votes from the far right, who oppose marijuana decriminalization and who also antagonize the supreme court (because they are prosecuting the people behing the coup attempt)
Sorry, I don't understand what you mean. The rightwards shift from the head of the senate is not random. In Brazil the far right is strongly opposed to court and Pacheco has been advancing part of that agenda in order to gather support from them.