“A Supreme Court case and a bill moving through Congress this week are set to test the bonds of Republicans and the Make America Healthy Again movement, following a near-rupture in February over the weedkiller glyphosate,” CNBC reports.“The court will hear a case Monday to decide whether federal law preempts state-level lawsuits alleging glyphosate, the chemical in Bayer’s herbicide Roundup, causes cancer. And the U.S. House is expected to take up the farm bill this week, a massive agricultural policy measure that includes new protections for the chemical.”