Suppose that you are conducting a study of individuals’ atti…

Suppose that you are conducting a study of individuals’ attitudes towards immigration. You solicit participation over social media (Facebook), and nearly 2,000 individuals respond as your family and friends share the link to your survey with their friends and family. Would this be a scientifically sound study of public opinion on immigration?

A state government signs a trade agreement with a foreign co…

A state government signs a trade agreement with a foreign country to export agricultural products directly, bypassing federal oversight. The federal government sues to block the deal, claiming it violates the Constitution. Which constitutional principle best supports the federal government’s position?