Liberals have been "putting Congress on notice" for decades, as the country drifted further and further to the right. Over the past 20 years, those who aren't on the right wing have only been more deeply divided by class and race. Many recognized that the years of the Obama administration would probably be our last chance to pull people together, for the common good. It was worth a try, but didn't work.
I want to believe that something has changed, but I just don't see it. We've simply entered the next phase of what began with the "Reagan Revolution." The Clinton Democrats implemented more of the right wing agenda than Republicans could have ever dreamed possible. It appears that Congress and the Supreme Court have ceded their authority, giving Trump & Co. carte blanche. Because those who aren't on the right wing are now so deeply divided, I don't see what anyone can do.