They're Democrats, they will simply repeal the law if Trump wins the popular vote. If you accept the fact that they can make up this silly rule, you have to accept the fact that they can change this silly rule. They will never ever ever overrule their voters and give Trump the electoral votes.
‘They will never ever ever overrule their voters and give Trump the electoral votes.’
you couldn’t be more correct, as Trump will be ineligible to run by the time this compact ever sees the light of day...