Alexandria Ocasio-Cortez fascinates the press and electrifies progressives, but some Democratic colleagues just want her to pipe down and behave. One anonymous Democratic rep told Politico, “She needs to decide: Does she want to be an effective legislator or just continue being a Twitter star? There’s a difference between being an activist and a lawmaker in Congress.” According to the article, Ocasio-Cortez’s colleagues are particularly dismayed by her history of backing primary challenges to Democratic incumbents, and they warn that she will have “a lonely, ineffectual career in Congress if she continues to treat her own party as the enemy.”

If Ocasio-Cortez does start to feel lonely, I urge her to visit the Senate Reception Room at the other end of the Capitol. There’s a man she should meet. His portrait hangs on the wall, the old guy with the bow tie and the enormous pompadour. Few remember him these days, but Senator Robert La Follette of Wisconsin was a political sensation in his day, loved by the press, hated by his Republican colleagues. They loathed him for his radical ideas, his outspokenness, and his disloyalty to the party. President Theodore Roosevelt called him “a shifty self-seeker” and “an entirely worthless Senator.” In 1907, a journalist memorably described him as “the loneliest man in the United States Senate.”