The United States Ambassador to Nigeria, Mr. James Entwistle, has petitioned the Speaker of the House of Representatives, Hon. Yakubu Dogara, accusing some members of the lower chamber of improper conduct, attempted rape and soliciting for prostitutes while on official trip to the US. But, the affected lawmakers have denied all the allegations and threatened to sue the ambassador and the US government for “character defamation and a calculated attempt to ridicule the National Assembly.”