FBI Director Kash Patel is planning to visit Russia later this year, likely in mid-October, according to a U.S. official and a person familiar with the situation. It would be an unusual and sensitive trip for an FBI chief to one of America’s top adversaries. The plans come as Washington and Moscow continue to be at odds over the war in Ukraine, with U.S. lawmakers demanding the imposition of heavy new sanctions on Russia. Patel has a history of involvement in controversial Russia-related matters dating to President Donald Trump’s first term, including trying to cast doubt on investigations into whether...