In short, many of today’s young leaders, and their older allies, don’t want to work within the liberal system. It’s very hard for Democrats to play by the rules of liberalism when the other party won’t. Furthermore, Trump has a vested interest in keeping the progressives atop the Democratic Party, and he powerfully influences that party. When Pelosi tried to marginalize the squad, Trump issued a racist tweet against the squad’s members. In the current moment, “Let’s not get carried away” and “Let’s play by the rules” are not great campaign slogans.

Source: New York Times July 15, 2019 22:52 UTC