Democrats announce public impeachment hearings with eight witnesses next week

House Democrats on Tuesday announced a spate of additional hearings for next week as part of the public phase of their impeachment inquiry as they seek to make the case that President TrumpDonald John TrumpSanders apologizes to Biden for supporter's op-ed Jayapal: 'We will end up with another Trump' if the US doesn't elect progressive Democrats: McConnell impeachment trial rules a 'cover up,' 'national disgrace' MORE pressured a foreign government for his political benefit.

House Intelligence Committee Chairman Adam SchiffAdam Bennett SchiffWhite House appoints GOP House members to advise Trump's impeachment team Trump knocks authors of 'A Very Stable Genius': 'Two stone cold losers from Amazon WP' Democrats push back on White House impeachment claims, saying Trump believes he is above the law MORE (D-Calif.) said the committee expected to hear on Tuesday from key witnesses such as Lt. Col. Alexander VindmanAlexander VindmanPresident Trump's intelligence community security blanket Whistleblower's lawyer questions GOP senator's whistleblower protection caucus membership White House limits number of officials allowed to listen to Trump calls with foreign leaders: report MORE, a top Ukraine expert on the National Security Council (NSC), and Jennifer Williams, an aide to Vice President Pence. The panel also plans to hear from Kurt VolkerKurt VolkerGOP chairmen seek interview with Obama officials as part of Biden-Ukraine probe Push to investigate Bidens sets up potential for Senate turf war Senate confirms Brouillette to replace Perry as Energy secretary MORE, former special envoy to Ukraine, and Tim Morrison, a top NSC official.

Schiff said on Wednesday that lawmakers plan to hear from U.S. Ambassador to the European Union Gordon Sondland, who revised his testimony to say he believed the president "likely" conditioned nearly $400 million in aid to opening such probes. Later that afternoon, they will hear from top Defense official Laura Cooper, who testified about decisions to withhold the aid, and David Hale, the Under Secretary of State for Political Affairs.

Democrats will wrap up the second week of public hearings with testimony from Fiona Hill, former NSC senior director for Europe and Russia, who testified about her concern that Trump's lawyer Rudy GiulianiRudy GiulianiParnas attorney asks William Barr to recuse himself from investigation Poll: 51 percent of Americans say Senate should convict and remove Trump Hypocrisy is the currency of the realm for GOP in the age of Trump MORE and others sought to remove a top diplomat to Ukraine.

The announcement comes one day before Democrats are expected to hold their first public hearing, in which they hope two career State Department officials will deliver convincing testimony about Trump pressing Ukrainian President Volodymyr Zelensky to open investigations into interference in the 2016 election and former Vice President Joe BidenJoe BidenSanders apologizes to Biden for supporter's op-ed Jayapal: 'We will end up with another Trump' if the US doesn't elect progressive White House appoints GOP House members to advise Trump's impeachment team MORE and his son.