Trump launched a defamation lawsuit. Now a judge says he must testify. CTV NewsTrump ordered to answer questions under oath in BBC lawsuit BBCTrump ordered to sit for deposition in his defamation lawsuit against the BBC by Dec. 11 – National Global NewsUS judge orders Trump to sit for deposition in $10bn lawsuit against BBC | Donald Trump The GuardianDonald Trump ordered to face BBC questioning in $10bn defamation lawsuit Financial Times