Teriitahi was elected a municipal councilor in Paea on the list of former mayor Jacquie Graffe in the 2014 municipal elections.[1]
In the 2017 French legislative election she was a candidate for French Polynesia's 2nd constituency. While a member of the Tapura, she stood against official Tapura candidate Nicole Sanquer.[2] She placed 4th, with 13.08% of the vote.
She was elected to the Assembly of French Polynesia at the 2018 French Polynesian legislative election within the 2nd Windward Islands section.[3] In June 2018, following the election of Sylvana Puhetini as second vice-president of the Assembly she was elected as President of the Tapura group in the Assembly.[4][5]
In the 2020 municipal elections she headed the Tapura list in Paea in the second round,[6] following the death of Mayor Jacquie Graffe.[7] In June, a month after the announcement, she received homophobic insults from a surfer.[8] The Tapura lost the mayoralty, retaining only 7 seats against 25 for the Tavini, and tipping the Tapura into the opposition.[9]
At the 2022 French legislative election she was the Tapura candidate for the 2nd constituency.[10][11] While she led in the first round, with 33.24% of the vote, she was defeated in the second round by the Tavini's Steve Chailloux.[12]
She was re-elected to the Assembly at the 2023 election.[13]