In May 2023, following the appointment of state delegate
Tony Bridges as the Assistant Secretary for the
Maryland Department of Transportation, Ruff applied to fill the vacancy left by his resignation in the Maryland House of Delegates. In June 2023, the Baltimore City Democratic Central Committee voted to send Governor
Wes Moore the names of both Ruff and former state delegate
Angela Gibson for consideration to fill the vacancy. He was sworn in on July 6, 2023. House speaker
Adrienne A. Jones assigned Ruff to the Appropriations committee and he is also a member of the
Legislative Black Caucus of Maryland and the
Baltimore City Delegation. In January 2025, after state senator
Jill P. Carter resigned following her nomination to the Maryland State Board of Contract Appeals, Ruff applied to fill the remainder of Carter's term in the
Maryland Senate. Ruff was backed by Carter and Baltimore lawyer Billy Murphy Jr. The Baltimore City Democratic Central Committee voted 5–3 to nominate
Dalya Attar to the seat later that month. In August 2025, Ruff announced that he would
run for the Maryland Senate in District 41, challenging Attar. ==Political positions==