Oklahoma Senate

Robinson was first elected to the Oklahoma Senate in 1988.^[2]

Robinson ran for reelection to a second term in 1992.^[3]

In 1996, Robinson faced a primary challenge from former state representative John Monks of Muskogee, who had lost his Oklahoma House of Representatives seat two years prior.^[4] Robinson defeated Monks in the primary with 64% of the vote.^[5] Despite trailing by a large margin, Monks requested a recount. The recount stopped at Monks request after 3 of 36 precincts were recounted, resulting in Robinson gaining three votes.^[6]

In the 2000 election Robinson faced Republican Tommy Anderson, a Muskogee School board member.^[7] He was reelected with 16,225 votes to Anderson's 7,550 votes.^[8]

Robinson retired in 2004 due to term limits.^[9] He endorsed John Edwards in the 2004 Democratic presidential primary.^[10]

2022 Congressional campaign

Robinson left the Democratic Party and filed to run as an Independent for Oklahoma's 2nd congressional district in the 2022 midterm elections.^[11]