WASHINGTON – The U.S. House launched the first public hearing Wednesday of Donald Trump’s impeachment investigation, the extraordinary process to determine whether the 45th president of the United States should be removed from office. Rep. Adam Schiff, the Democratic chairman of the House Intelligence Committee, immediately outlined the question at the core of the impeachment inquiry -- whether the president used his office to pressure Ukraine officials for personal political gain. “The matter is as simple and as terrible as that,” Schiff said.