Unpopular election opinion - after the election the democrats will (again) cry that they lost, despite wining the popular vote. This will (again) be their chance to change it. Trump spoke in favour of popular vote for president, they can strike a deal with him for a constitutional amendment. Include anti-fraud measures (voter ID, proof of citizenship, oversight) for the Rs, and popular vote for the Ds. Throw in a "this election doesn't count for the 2 term limit" for Trump, and he will take it. But they are not going to do that. They will just keep crying.