LOS ANGELES — A porn actress who said she had sex with Donald Trump before he became president has been threatened with physical harm, her attorney said Friday. Stormy Daniels, whose real name is Stephanie Clifford, has been seeking to invalidate a nondisclosure agreement she signed days before the 2016 presidential election in order to discuss their relationship, which she said began in 2006 and continued for about a year. Clifford’s attorney, Michael Avenatti, told The Associated Press his client had been “physically threatened,” but he didn’t provide details.