Washington: At least 291 former US national security officials have signed a letter endorsing Democratic nominee Joe Biden for President, it was announced on Tuesday.
The latest signatures announced to join the 489 national security leaders who had previously endorsed the former Vice President as having "the character, principles, wisdom and leadership necessary to address a world on fire", a news website reported.
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In a statement, Michael Smith, executive director of National Security Leaders for Biden, the group that organised the letter, said: "The initial release of the letter was a clarion call to so many patriotic Americans who believed they must do their part to elect Joe Biden.