Veteran Hollywood star Robert De Niro has launched a scathing attack against the US Presidential runner from the Republican party, Donald Trump, 78.

The Godfather actor has accused him of wanting to “destroy” America, and branded the scandal-hit Republican a “clown”, who will become a “dictator for life” if re-elected in the November election. De Niro mocked him for being incapable of doing anything that requires “structure”, let alone running the country.