House Speaker Mike Johnson defended himself and fellow GOP leaders after Rep. Marjorie Taylor Greene criticized them for lacking a plan to deal with the expiring COVID expansion of Obamacare subsidies. “There’s a lot of work that’s been done on that,” Mr. Johnson, Louisiana Republican, said Tuesday. “It’s implied as if this has been some sort of ignored issue. It’s not that at all.”Ms. Greene, Georgia Republican, took to social media on Monday to announce her support for extending the enhanced Obamacare subsidies, which Democrats are demanding to reopen the government.It was a notable break from other right-wing lawmakers who...