50 Republican Officials Say that Trump is a National Security Threat

50 senior US Republican national security officials have said Donald Trump would be “the most reckless president in American history” as the billionaire’s opponents within the party launched a former CIA officer as an alternative candidate.

In a letter to the New York Times a group including people who served in George W Bush’s cabinet, said Mr Trump lacked the “character, values and experience” needed for the White House and would “put at risk our countryโ€™s national security and well-being.”

They said the the Republican nominee had little understanding of complex diplomacy, democratic values, or the importance of allies, and had shown “no interest in educating himself.” The signatories said none of them would vote for Mr Trump.

They included Michael Hayden, former director of the CIA and the National Security Agency, John Negroponte, former director of national intelligence, former homeland security secretaries Tom Ridge and Michael Chertoff, and William Taft, former ambassador to Nato.