Pageantry and ceremony of London visit follow Trump's dishing of insults and political advice; Judiciary panel announces new hearings of Mueller report amid growing calls by House Dems for impeachment inquiry; House Oversight to vote to hold AG Barr and Secy Ross in contempt for defying subpoena on census inquiry; CNN: At least 56 House Dems favor starting impeachment inquiry; Kushner not sure he would alert the FBI if Russians offered campaign support again; House panel launches antitrust probe of big tech; Investigators release emails sent by attacker hours before start of Virginia Beach massacre; "Purged" North Korean envoy reappears in state media; Was reportedly imprisoned after failed Trump summit via Knit