Democrats in the House chamber burst into raucous laughter when Marjorie Taylor Greene called for “decorum”. The far-right Georgia Republican, controversialist and conspiracy theorist was presiding over the House on Wednesday as Steve Scalise, the Republican majority leader, was speaking. Scalise was discussing the debt ceiling standoff between House Republicans and the Biden White House. He said: “We are in fact the only body in this town who has actually taken steps to address the debt ceiling and the spending problem in Washington.” An unseen lawmaker yelled something. From the dais, Greene pounded her gavel and called for order. Scalise...