The politics of Congress is increasingly one of chaos. Democrats won the House of Representatives in 2018 on a pledge to hold President Trump accountable and promote “fairer” economic growth. Yet for the first two months of the party’s tenure in power, it has been New York freshman Rep. Alexandria Ocasio-Cortez dominating headlines with her social media-driven insta-fame and advocacy of policies like the Green New Deal, a sweeping program to redesign the entire economy to combat climate change that has won the endorsement of several Democratic presidential candidates over the objections of House Speaker Nancy Pelosi of California. Suffice it to say, this is not how the Democrats won over Middle America in 2018. Recently, Rep. Ilhan Omar, a freshman from Minneapolis, has drawn attention for anti-Semitic comments that House Democrats could not bring themselves to condemn formally. Party leadership was ignored in meetings about how to handle the controversy, and, by and large, the party and its aspiring standard-bearers sided with the freshman out of fear of the grassroots. Again, this is not part of the program. Congressional disorder seems to be a bipartisan affliction. During their previous six years in the majority, GOP leaders constantly had to fight off revolts from the Tea Party. Eventually, the right flank of the House GOP dethroned Speaker John Boehner. His replacement, Paul Ryan, retired last year after serving as little more than a caretaker speaker....