This has as much to do with the rise of social media and the increasing power bequeathed to the executive branch as it does whoever is individually in office. Pandora's Box has already been open in this respect, so to speak.
Trump and Obama are only doing what Wilson and Teddy Roosevelt would have done if the internet existed back then. It's overly fatalistic to think that increasing presidential power is a one-way street. This goes in cycles. Eventually, congress will reassert itself and the public will tire of an in-your-face WH with apocalyptic ambitions, just like it did during 1974-2000 and 1918-32. Human nature hasn't changed since then.
A "return to normalcy" campaign could indeed be fruitful for the Dems in 2020 or 2024, but will work much better if they stop the massive protests and if the stock market stops returning the equivalent of 15-20% per year.
