The Senate Judiciary Committee released a declassified transcript of FBI source Stefan Halper’s conversation in September 2016 with George Papadopoulos. The transcript shows that Halper name-checked several former Russian intelligence officials who he has met throughout his storied career. The former Cambridge professor plied Papadopoulos with questions about the Trump campaign’s possible collusion with Russia and WikiLeaks. It wasn’t long into his conversation with George Papadopoulos at a prestigious social club in London weeks before the 2016 election that FBI confidential informant Stefan Halper mentioned his links to several retired Russian spies. “I have a lot of friends in Russia,”...