I’m a former boxing champion and trainer on The Biggest Loser – I’m ready to fight in new career as a politician [Video]

CARA Castronuova is set to embark on a dramatic career change.

Formerly a boxing champion and trainer on NBC’s The Biggest Loser, Castronuova, 44, has announced that she has filed to run in the Republican primary for the US Senate.

Cara Castronuova has announced she has filed to run for the US SenateCredit: Instagram/caracastronuova

Castronuova (left) appeared in Series 11 of NBC’s The Biggest Loser as a trainerCredit: Getty

Castronuova (right) won two Golden Gloves in New York in 2005 and 2006Credit: Getty

“Today I dropped off an insane amount of signatures at the Board of Elections to get on the ballot to run for US Senate,” she captioned an Instagram post announcing the news.

“We stayed up for three straight days throughout the night binding and organizing the signature pages very specifically.

“Thousands of people from around the states sent me their signatures and 100s of volunteers helped me …