https://www.mercurynews.com/2019/11/21/key-witnesses-will-cap-intense-week-in-impeachment-inquiry/ > By LISA MASCARO, MARY CLARE JALONICK and ERIC TUCKER | The Associated Press > WASHINGTON  — House impeachment investigators will hear on Thursday from two key witnesses who grew alarmed by how President Donald Trump and others in his orbit were conducting foreign policy in Ukraine, capping an intense week in the historic inquiry.