Here's a Democratic landslide based on a caricature of present trends:
Unless something in our economy happens to disrupt the disconnect between large/connected metros and the rest of the country, especially the small towns and cities of the Midwest, I doubt that we'll see Republicans improving in the former or Democrats improving in the latter.
WY voting to the left of WI LMAO
Playing Devil's advocate, Trump won Wyoming by 118,000 votes. Weld County, CO has added 133,000 residents over the past 18 years. If the I-25 sprawl swallows up Cheyenne, it wouldn't take very long to make the state competitive.