The U.S. Constitution authorizes State legislatures and Congress to pass laws for the election of representatives to the House of Representatives and the Senate, and for picking members of the Electoral College (also called "presidential Electors"). As you should expect by now, it is Article I that contains the provision for electing candidates to Congress (the House and Senate), and it is Article II that contains the provision for electing the members of the Electoral College to choose the next president.
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The U.S. Constitution authorizes state legislatures and Congress to pass laws for the election of representatives to the House of Representatives and the Senate, and for picking members of the Electoral College (also called "presidential electors"). As you should expect by now, it is Article I that contains the provision for electing candidates to Congress (the House and Senate), and it is Article II that contains the provision for electing the members of the Electoral College to choose the next president.