I think this guys analyses are misleading. If there are 3,000,000 voters and 30% are registered democrats (1,000,000), that means that Biden got 1,300,000 votes. There isn't anything strange about that. The -30% democrat vote for Trump is even more misleading.
I also didn't agree with his other analysis of Trump votes (in PA I think it was).
I think this guys analyses are misleading. If there are 3,000,000 voters and 30% are registered democrats (1,000,000), that means that Biden got 1,300,000 votes. There isn't anything strange about that. The -30% democrat vote for Trump is even more misleading.
I also didn't agree with his other analysis of Trump votes (in PA I think it was).