It's happening. After years of "Will she or won't she?", House Speaker Nancy Pelosi announced on Tuesday the launch of a formal impeachment inquiry into President Donald Trump. The announcement follows days of reports that Trump pressured the Ukrainian president to conduct an investigation into Hunter Biden, the son of Joe Biden, the former vice president and a current Democratic nominee. Just ahead of the call, the White House reportedly delayed $391 million in Congress-approved military aid to Ukraine.