Trump's outrage at NFL athletes protesting police injustice by taking a knee during the national anthem proves just how much he values honouring the US through song.

Trump is like, really, really patriotic OK? Nobody is more patriotic than him, really.

Except perhaps he isn't, judging by a clip from a rally in which the Donald appears to forget the lyrics to 'God Bless America'.

The event was held yesterday after Trump 'cancelled' the Philadelphia Eagles visit to the White House after realising nobody was going to turn up.

"Staying in the Locker Room for the playing of our National Anthem is as disrespectful to our country as kneeling. Sorry!" he tweeted.

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In the intensely awkward clip, Trump starts off well by remembering the first line "God bless America, land that I love", but things go south shortly afterwards and he's left bobbing his head and opening his mouth at random intervals like a fish out of water.

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