In 2013, Yu made her run for vice mayor of Pagadian alongside Romeo "Tata" Pulmones under the
Nationalist People's Coalition, defeating Romeo Vera Cruz of the
Liberal Party.
House of Representatives In the
17th Congress, Yu was the chairperson of the
House Committee on the Welfare of Children. In the
18th Congress, she was one of the vice chairpersons of the
House Committee on Accounts; one of the vice chairpersons of the
Committee on Inter-Parliamentary Relations and Diplomacy; and sits in as member of the House Committees on
Ecology,
Appropriations, and
Disaster Resilience. On July 10, 2020, along with 70 other members of Congress, Yu voted to reject the
franchise renewal of ABS-CBN. Since December 7, 2020, Yu serves as one of the
House deputy speakers under the leadership of House Speaker Lord Allan Velasco. In December 2023, Yu left
PDP-Laban to join the
Lakas–CMD party. On February 5, 2025, Yu was among the 95 Lakas–CMD members who voted to
impeach vice president
Sara Duterte. ==Electoral history==