EXCLUSIVE: The impeachment inquiry against President Trump has triggered a wave of charges, countercharges, court battles, subpoenas and legal threats. Now it has produced its first libel suit. A White House official on Monday sued Politico and one of its reporters over stories and tweets that he says falsely accuse him of “lying, deceit and unethical conduct.” Kash Patel, the National Security Council’s senior counterterrorism director, is seeking more than $25 million in damages in the suit filed in Virginia. We have reached out to Politico for comment. The lawsuit also names Natasha Bertrand, a Politico reporter and MSNBC contributor,...