Unpredictable Sondland faces questions about Trump, Ukraine

FILE - In this Monday, Oct. 28, 2019, file photo, U.S. Ambassador to the European Union Gordon Sondland walks to a secure area of the Capitol to testify as part of the House impeachment inquiry into President Donald Trump, in Washington. Sondland is scheduled to be the first witness when the impeachment hearings resume at 9 a.m. EST Wednesday, Nov. 20. (AP Photo/Patrick Semansky, File)

Ambassador Kurt Volker, left, former special envoy to Ukraine, walks with his lawyer Margaret Daum while arriving to testify before the House Intelligence Committee on Capitol Hill in Washington, Tuesday, Nov. 19, 2019, during a public impeachment hearing of President Donald Trump’s efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Julio Cortez)

Tim Morrison, a former official at the National Security Council, arrives to testify before the House Intelligence Committee on Capitol Hill in Washington, Tuesday, Nov. 19, 2019, during a public impeachment hearing of President Donald Trump’s efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Manuel Balce Ceneta)

National Security Council aide Lt. Col. Alexander Vindman, left, walks with his twin brother, Army Lt. Col. Yevgeny Vindman, after testifying before the House Intelligence Committee on Capitol Hill in Washington, Tuesday, Nov. 19, 2019, during a public impeachment hearing of President Donald Trump’s efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Julio Cortez)

Jennifer Williams, an aide to Vice President Mike Pence, leaves after testifying before the House Intelligence Committee on Capitol Hill in Washington, Tuesday, Nov. 19, 2019, during a public impeachment hearing of President Donald Trump’s efforts to tie U.S. aid for Ukraine to investigations of his political opponents. (AP Photo/Julio Cortez)

WASHINGTON — Ambassador Gordon Sondland, the most anticipated witness in the impeachment inquiry, is likely to be unpredictable when he faces questions about his evolving accounts of the Trump administration’s dealings with Ukraine and a newly revealed summertime phone call with President Donald Trump.