SEATTLE (AP) — Seattle Mayor Jenny Durkan said Thursday that the city will file a lawsuit to block the $30 car tab initiative passed by Washington voters in Tuesday’s general election.

If fully implemented, Initiative 976 would force the city to cut more than 100,000 bus hours and would hamper her program to provide free bus access for high school students and low-income residents, Durkan said in a news conference. She also emphasized that voters in King County firmly voted against the measure sponsored by Tim Eyman.

City Attorney Pete Holmes says the initiative has “fairly obvious legal problems” and says the city will file a joint complaint with King County and ask that the initiative be put on hold.