Washington Post: “The president’s oldest son is expected to spend about four hours with the committee answering a limited number of questions, according to people familiar with the terms — including queries about a June 2016 meeting at Trump Tower with a Russian lawyer promising incriminating information about Hillary Clinton.”
“Congressional Democrats believe that Trump Jr. may have lied to them during previous testimony about the meeting and whether he told his father about it — suspicions that were heightened after the publication of Robert Mueller’s report.”

