the top u.s. envoy to ukraine, bill taylor, who opens hearings on wednesday. that was my clear understanding. security assistance money would not come until the president of ukraine committed to pursue the investigation of the bidens. ambassador bill taylor testified and gave the most sweeping and devastating testimony. the national security council s top ukraine expert, lieutenant colonel alex vindman, there was no doubt, senior state department official george kent also told investigators that president trump wanted nothing less than president zelensky to go to a microphone and say investigations biden and clinton. and president trump s former top russia adviser, fiona hill, testified that u.s. ambassador to the eu, gordon sondland, told ukrainian officials in a july 10th meeting at the white house about how he had an agreement with chief of staff mulvaney for a meeting with the ukrainians if they were going to go forward with investigations.