The hearing will be held by the intelligence Committee for three days.
Next week, the house intelligence Committee will hold a three-day public hearing as part of an investigation into the possible impeachment of President Donald Trump. Adam Schiff, Chairman of the Committee, said.
Witnesses invited to public hearings on Tuesday, Wednesday and Thursday next week have already testified during closed sessions, Schiff said in a statement.
On November 19, a hearing will be held with Alexander Vindman, a national Security Council official, Jennifer Williams, an adviser to Vice President Mike Pence, Kurt Volker, a former state Department special representative for negotiations in Ukraine, and Tim Morrison, a national Security Council official.
On November 20, Gordon Sondland, the US Ambassador to the European Union, Laura Cooper, the Deputy Assistant Secretary of Defense, and David Hale, the Deputy Secretary of state, are due to appear at the hearing.
Fiona Hill, formerly of the National Security Council, is due to attend the hearing on November 21.