WASHINGTON — President Trump and congressional Republicans are considering an income tax surcharge on the wealthy and doubling the standard deduction given to most Americans, with the Republicans under pressure to overhaul the tax code after the collapse of the health care repeal. On the eve of the grand rollout of the plan, details emerged on Capitol Hill on Tuesday while Trump personally appealed to House Republicans and Democrats at the White House to get behind his proposal. “We will cut taxes tremendously for the middle class.