SIR KEIR STARMER faces increased pressure to restore the whip to Diane Abbott as support for Britain’s first female black MP skyrockets with a major demonstration set to be a “show of strength in support” for the left-wing trailblazer in London tomorrow.

Thousands have signed petitions calling for her to be returned to the party after even deputy leader Angela Rayner and MPs Harriet Harman and Ed Balls said she should be reinstated in the wake of major Tory donor Frank Hester’s vile racist comments.

Ms Abbott was suspended from the party last April after saying white marginalised groups do not suffer racism “all of the time.”