Senator Bernie Sanders has denied that he sent a message of support to Labour leader Jeremy Corbyn.
Mr Corbyn told supporters at a phone bank event on Monday that the Jewish senator, who lost out to Hillary Clinton in the race for the Democratic Party nomination, had favourably compared the two politicians.
A spokesman for Mr Corbyn later admitted that this was a mistake.
Speaking in Walthamstow, east London, as part of his leadership campaign, the Labour leader said: “We had a message yesterday from Bernie Sanders, saying that they condemned him because he wasn't electable,” the Press Association reported.
