Weed killer glyphosate pits Trump against his MAHA base

The Supreme Court is considering arguments around the broadly used herbicide glyphosate, which is sold by Bayer subsidiary Monsanto as "Roundup." The case will determine whether state laws preempt federal regulations on labeling health risks allegedly associated with glyphosate. In 2026, President Trump called to shore up domestic supplies of glyphosate, drawing the ire of some in the health-conscious "MAHA" movement.