'Couldn't believe what I was hearing': White House aides testify in impeachment probe

Jennifer Williams, a special adviser to Vice President Mike Pence for European and Russian affairs and Alexander Vindman, director for European Affairs at the National Security Council, are sworn in to testify before a House Intelligence Committee hearing as part of the impeachment inquiry into US President Donald Trump on Capitol Hill in Washington, US, November 19, 2019.

Senior US officials told impeachment investigators in Congress on Tuesday they were concerned by President Donald Trump’s effort to get Ukraine to investigate a political rival, with one White House official calling it a “shock.”

The third day of impeachment hearings conducted by the House of Representatives Intelligence Committee marked the first time that officials from inside the White House publicly expressed their misgivings about a freewheeling pressure campaign that now threatens Trump’s presidency.