WASHINGTON—Sen. Ron Johnson (R., Wis.) said national-security officials, potentially including impeachment witness Lt. Col. Alexander Vindman, have worked to undermine President Trump, as he offered details about his interactions with Mr. Trump and officials related to the Ukraine controversy. His recollection of meetings and conversations with Col. Vindman and U.S. ambassador to the European Union Gordon Sondland, both of whom are set to testify publicly this week during House impeachment hearings, were included in a wide-ranging...

Source: Wall Street Journal November 18, 2019 18:30 UTC