Taylor expected to be first to testify in public hearings

FILE - In this Oct. 22, 2019, file photo, Ambassador William Taylor is escorted by U.S. Capitol Police as he arrives to testify before House committees as part of the Democrats' impeachment investigation of President Donald Trump, at the Capitol in Washington. Taylor, the top U.S. diplomat in Ukraine, told lawmakers last month that President Donald Trump was withholding military aid for Ukraine unless the country’s president agreed publicly to investigate Democrats, according to a transcript of his closed-door testimony released by impeachment investigators on Nov. 6. (AP Photo/J. Scott Applewhite, File)

WASHINGTON — Democrats announced they will launch public impeachment hearings next week, intending to bring to life weeks of closed-door testimony and lay out a convincing narrative of presidential misconduct by Donald Trump.