Trump's 'he knew what he signed up for' comment is taken apart as untrue, as well as offensive

A former Obama era assistant secretary has attacked the reported claim by United States President Donald Trump that a dead soldier 'knew what he signed up for'.

On Tuesday, the President of United States denied the accusation by a Florida Congresswoman that he had told a soldier's grieving widow that 'he knew what he signed up for'.

Representative Frederica Wilson accused the President of making the tactless remark in a conversation which she overheard on speaker phone with the wife of Sgt. La David Johnson.

The alleged remarks were widely criticised, particularly coming from a Commander-in-Chief with zero hours of military service.

Subsequently the President 'clarified' his remarks and on Tuesday tweeted to say the story was 'fabricated'.

Among his critics was Brandon Friedman, former official in the US department of housing, and a combat veteran of four tours of duty between 2000 and 2004.

Friedman posted the thread on Twitter about the President's alleged remarks.

More: Donald Trump has banned transgender people from the military - but here's what he promised this time last year