A lawyer representing two women who testified that former Representative Matt Gaetz paid them for sex told multiple news outlets on Monday that one of the women described witnessing Mr. Gaetz having sex with an underage girl at a party in 2017. The lawyer, Joel Leppard, told CBS News, ABC News and CNN about his clients’ testimony to the House Ethics Committee, which was investigating allegations about Mr. Gaetz and young women, as well as accusations of drug use. Mr. Gaetz resigned last...