Given your assertion, it seems you’re referring to a situation where U.S. Representative Bill Johnson is urging Ukraine’s President Volodymyr Zelenskyy to dismiss Ukraine’s ambassador to the U.S. This directive could be due to some controversy surrounding a visit to Pennsylvania. However, I’m unable to provide up-to-date news events or real-time information without the date and specifics of the event you’re talking about. My abilities are based on existing and generic information, not real-time events