Dan Pfeiffer: “Definitely.”“Two incumbents losing primary challenges on the same night is a huge warning. Incumbents almost always win renomination. In fact, since 1946, more than 98% of all incumbents have won renomination… there is plenty of evidence that dissatisfaction with the Democratic establishment is a major factor in races across the country.”“That anger is fueled by a combination of factors, including a sense that the Party has failed to stand up to Trump, that it’s captured by corporate interests, that it’s not focused enough on the working class and cost of living, and that it has been too weak in its response to the genocide in Gaza.”