Why George W Bush couldn't vote for Trump

George W Bush has never hidden his lack of affection for Donald Trump.

But a spokesman for the 43rd president did not vote for either Mr Trump, or his Democratic rival Hillary Clinton.

In a statement to the Wall Street Journal, a spokesman for Mr Bush declined to specify who the former president or the former first lady, Laura Bush, cast their votes for, but said they did so two weeks ago.

Although initial reports incorrectly claimed that the Bushes had voted for Ms Clinton on Tuesday, the failure to vote for the party's nominee is a major departure from political tradition.

Neither Mr Bush, or his father former president George HW Bush, attended the Republican Party convention in Cleveland this summer.

Mr Trump aggressively attacked and insulted Mr Bush's brother, Jeb Bush, in the primaries, calling him low energy.

Mr Trump, in a radio interview Tuesday, called former President George W. Bush's decision not to vote for him "sad."

Bush and his wife, Laura, left the presidential candidate section of their ballots blank, and instead voted for down ballot Republicans.

Appearing on the "Howie Carr Show" on WRKO Tuesday evening, Trump said he didn't think the news has any impact.

"I think it's sad," Trump said. "I think it's sad, you know.

"When I see George Bush do that, and look I was very critical of him for getting us into Iraq, which was obviously a horrible decision, and getting out the way Obama got us out was a horrible way to get out too -- the combination. I don't think it has any impact, frankly. I think it has no impact."