Regulated fares, which include season tickets and off-peak returns, will not see annual price rises for the first time in 30 years, the government announces.
Speaking to BBC Breakfast, the mayor of Greater Manchester did not reply when pressed about a possible challenge to Keir Starmer for the Labour leadership.
Since the corporation's retraction, Trump has indicated he may continue legal action, upping the amount he could sue for to between $1bn (£759m) and $5bn.