Peters was elected to the national assembly in 2020. In August 2022 she became the first woman to serve as the Minister of Foreign Affairs and Foreign Trade.[1][2] She succeeded the Prime Minister Ralph Gonsalves who held that portfolio but he delegated that responsibility to Peters so that he could concentrate on improving the country's tertiary education system.[3]
In 16 July 2024 the Prime Minister announced a reshuffle of ministers. He was speaking after Hurrican Beryl had struck. He said he wanted Peters to look at "the heart and soul of the government".[4]
Peters remained in the cabinet and she became the Minister for National Mobilisation, Social Development,
Family, Gender Affairs and Persons with Disabilities.[5] In February 2025 she was with ambassador Fiona Huei-Chun Fan when they accepted $66,000 of aid donated by American Taiwanese businesswoman Tina Bow following Hurricane Beryl.[6]
In November of 2025, Peters was the Unity Labour Party’s (ULP) candidate for West Kingstown.[7] However, she was defeated by Daniel E. Cummings of the New Democratic Party.[8]