President said top court would break with precedent if it overturns the health care law . Stephen Presser says Obama , who taught constitutional law , should know better . He says the Supreme Court has long exercised power to overturn unconstitutional laws . TL;DR ( CNN ) -- The U.S. Supreme Court is expected to rule on a challenge by states that want to block federal subsidies for insurance coverage under ObamaCare. Judicial review does n't usurp Congress ' power ; it maintains the rule of law .
President said top court would break with precedent if it overturns the health care law . Stephen Presser says Obama , who taught constitutional law , should know better . He says the Supreme Court has long exercised power to overturn unconstitutional laws . TL;DR The U.S. Supreme Court is expected to rule on a challenge by states that want to block federal subsidies for insurance coverage under ObamaCare. Judicial review does n't usurp Congress ' power ; it maintains the rule of law .