Complex sentence: The Compact is based on the current rule in of the Constitution that gives each state legislature the plenary power to determine how it chooses its electors, though some have suggested that of the Constitution requires congressional consent before the Compact could be enforcible.
Split into simpler sentences: The Compact is based on the current rule in of the Constitution which gives each state legislature the authority to determine how it chooses its electors. Even though each state has this plenary power to determine how it chooses its electors, some have suggested that of the Constitution requires congressional consent before the compact could be enforcible.