Donald Trump has suffered a double blow after his former campaign chief Paul Manafort was found guilty of fraud and his ex lawyer Michael Cohen admitted to paying hush money to porn star Stormy Daniels ahead of the 2016 US election.

In a stunning admission that implicates Trump, Cohen pleaded guilty to buying the silence of two women about their alleged affairs with Trump. Cohen, 51, pleaded guilty in the Southern District of New York to charges of tax evasion, making false statements to a federally-insured bank, and campaign finance violations.