OKLAHOMA CITY (AP) — Oklahoma Lt. Gov. Todd Lamb resigned Thursday from his position on Gov. Mary Fallin's Cabinet, citing a disagreement with the governor over her plans to broaden the sales tax to a variety of services.

Lamb, a likely candidate for governor in 2018, said in a statement that he felt it was best to step aside from his position as the administration's official small business advocate because he was unwilling to be an advocate for Fallin's tax proposals.

"While I respect the determination with which Governor Fallin met her obligation to present a balanced budget to the Legislatu...