First Lady Melania Trump has threatened to sue Hunter Biden for more than $1bn after he claimed she was introduced to her husband by sex offender Jeffrey Epstein. Lawyers acting on behalf of the first lady, who married US President Donald Trump in 2005, described the claim as "false, disparaging, defamatory and inflammatory". Biden, son of former US President Joe Biden, made the comments during an interview earlier this month, in which he strongly criticised the president's former ties to Eps...