> It is constitutionally impossible to disband the House of Representatives and switch to proportional representation the constitution dictates how representat

> It is constitutionally impossible to disband the House of Representatives and switch to proportional representation the constitution dictates how representatives are apportioned and sets out the rules for how election laws are handled. The districting rules are not in the constitution. So why would it require an amendment? You wouldn't dissolve the house, you would just change the apportionment as needed (people/rep) and pass the appropriate laws.