Donald Trump’s first State of the Union speech will see sex assault victims in the audience and Democrats dressed in black in a message of defiance against harassment.

Dozens of congresswomen will forgo bright colours in solidarity with the “Me Too” movement against misconduct, just as Hollywood stars did at the Golden Globes.

Women who have survived sexual attacks and campaigned to protect victims will also be watching the speech after being invited by Mr Trump’s political opponents.

Politicians told the Telegraph that wearing black would show “abhorrent behaviour” would not be tolerated and that the “drumbeat of progress will not be silenced”.

It will also throw light on the multiple harassment claims faced by Mr Trump - all denied – while he delivers one of his biggest speeches since taking office.

On Tuesday night, Mr Trump is expected to project a message of “unity” as he addresses both houses of Congress as well as Supreme Court judges and cabinet members.