Watch: Liz Truss faces opposition fire during PM's Q&A in UK Parliament

British Prime Minister Liz Truss described herself as “a fighter and not a quitter” Wednesday as she faced down a hostile opposition and fury from her own Conservative Party over her widely-criticised economic plan.

Truss attended her first session of Prime Minister's Questions since newly appointed Treasury chief Jeremy Hunt ripped up the tax-cutting package unveiled by her new government less than a month ago. She apologized to Parliament and admitted she made mistakes during her short tenure as the U.K.'s head of government.

Some lawmakers shouted “Resign!” as she spoke.

Asked by the opposition Labour Party's leader, Keir Starmer, “Why is she still here?” Truss retorted: “I am a fighter and not a quitter. I have acted in the national interest to make sure that we have economic stability.”