Even Donald Trump's most ardent supporters were trying to figure out why he would want to endorse a right-wing ultra-nationalist group like Britain First.

Piers Morgan who has defended Donald Trump could not help but show his disgust as the President's latest actions on Twitter.

Writing for Mail Online he said, "I don’t know what on earth possessed Donald Trump to offer such a stunning, shocking and repulsive endorsement of these racist Muslim-despising scumbags.

"Either he had no idea who these people really are, or he did know and decided they were worthy of his support.

The first makes him a bloody fool. "The second makes him a bloody disgrace.

"Whatever the truth, the massive damage has now been done."

It didn't take long before the facts behind the posts were revealed.

Jewish groups were quick to condemn the President.