Based on your knowledge of the Commerce Clause what would happen if a business sued Oregon over Measure 91?

The business would likely lose the lawsuit. The Commerce Clause of the United States Constitution gives Congress the power to regulate interstate commerce. This means that states cannot enact laws that discriminate against or unduly burden interstate commerce. Measure 91, which requires businesses to use only genetically modified-free seeds and crops, would likely be found to be in violation of the Commerce Clause because it would discriminate against businesses that import genetically modified seeds and crops from other states.