Trump tried hard to win Ukraine Biden probes, officials say

President Donald Trump tells a reporter to be quiet as he speaks on the South Lawn of the White House in Washington, Friday, Nov. 8, 2019, before boar...

President Donald Trump tells a reporter to be quiet as he speaks on the South Lawn of the White House in Washington, Friday, Nov. 8, 2019, before boar...

Demonstrators march on Pennsylvania Avenue protesting President Donald Trump, in Washington, Friday, Nov. 8, 2019. (AP Photo/Jose Luis Magana)

Demonstrators march on Pennsylvania Avenue protesting President Donald Trump, in Washington, Friday, Nov. 8, 2019. (AP Photo/Jose Luis Magana)

FILE - In this Sept. 30, 2019, file photo, former National security adviser John Bolton gestures while speakings at the Center for Strategic and Inter...

FILE - In this Sept. 30, 2019, file photo, former National security adviser John Bolton gestures while speakings at the Center for Strategic and Inter...

FILE - In this Oct. 15, 2019, file photo, Deputy Assistant Secretary of State George Kent arrives on Capitol Hill in Washington. House impeachment inv...

FILE - In this Oct. 15, 2019, file photo, Deputy Assistant Secretary of State George Kent arrives on Capitol Hill in Washington. House impeachment inv...

FILE - In this Oct. 15, 2019, file photo, Deputy Assistant Secretary of State George Kent leaves Capitol Hill after appearing before a joint House Com...

FILE - In this Oct. 15, 2019, file photo, Deputy Assistant Secretary of State George Kent leaves Capitol Hill after appearing before a joint House Com...

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 committee...

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 committee...

Former National Security Council Director for European Affairs Lt. Col. Alexander Vindman, center, leaves after reviewing his testimony in a closed-do...

Former National Security Council Director for European Affairs Lt. Col. Alexander Vindman, center, leaves after reviewing his testimony in a closed-do...

WASHINGTON (AP) — If Ukraine's new leader wanted an Oval Office welcome from Donald Trump — and he did — he would have to open a public probe into the president's Democratic foe Joe Biden and his son. That is what two key White House officials told impeachment investigators.

Lt. Col. Alexander Vindman, an Army officer assigned to the National Security Council, testified that Gordon Sondland, a Trump donor serving as ambassador to the European Union, told the visiting officials that if they hoped to win that coveted face-to-face meeting, "the Ukrainians would have to deliver an investigation into the Bidens."

According to transcripts released Friday in the House Democrats' impeachment inquiry, Vindman and Fiona Hill, a former White House Russia adviser, gave House investigators detailed updates of scenes central to the probe.