She was the Governor of Esmeraldas Province from 2013 to 2016 and is a current member of Ecuador's National Assembly for the Citizen Revolution Movement (RC).

Cabezas was elected leader of the largest political coalition in the 2021 National Assembly, the Union for Hope (UNES).

[5] After her resignation as Governor,[5] she put pressure on the President to ensure that she was appointed to the committee overseeing the recovery from the 2016 Ecuador earthquake.

[2] In May 2021 and after Sofía Espín's resignation from this position, Cabezas was elected as the new leader of this significant political coalition in the National Assembly, the UNES.

[7] In 2022 Cabezas was the opposition leader in the National Assembly where she claimed that the President's introduction of special emergency measures to control dissent in the three provinces of Cotopaxi, Imbabura and Pichincha had "serious irregularities".

[8] The President of Ecuador Guillermo Lasso brought in the constitution clause number 148 known as Mutual death in May 2023 when he knew that he was about to be impeached.

[11] In April 2022, Andrés Castillo, candidate for mayor of Quito, published a tweet containing a doctored image of Cabezas.