The computer file is said to contain testimony from the woman who said she had sex with Matt Gaetz, President-elect Donald Trump’s choice to be attorney general, when she was 17.An unidentified hacker has gained access to a computer file shared in a secure link among lawyers whose clients have given damaging testimony related to Matt Gaetz, the former Florida congressman who is President-elect Donald J. Trump’s choice to be attorney general, a person with knowledge of the activity said. The file of 24 exhibits is said to include sworn testimony by a woman who said that she had sex...