By G.E.M. | WASHINGTON, DC
PRESIDENT DONALD TRUMP’s approval and disapproval ratings have remained extraordinarily stable over the past three years. Presiding over unprecedented levels of political polarisation, he has displayed an ability to rally his supporters behind almost any policy proposal. His detractors, meanwhile, have remained doggedly opposed to his agenda. Perhaps unsurprisingly, Americans’ views on impeachment broadly follow this pattern. If someone supported Mr Trump’s presidency before the Democrats launched an impeachment investigation in September they are likely to oppose efforts to impeach him—and vice-versa.