Brandon is unimpressed with the Colorado General Assembly's proposal:

I would argue on the basis of this that the National Popular Vote Interstate Compact is in fact a violation of the principles of republicanism; that, because of this, Congress has the authority to overturn it if it ever is completed; and that, in fact, Congress has the constitutional duty to do so. While states do have the right to determine how to allocate their electors, the United States has the constitutional duty to guarantee that they do so in a form consistent with republican government.