McIntyre was elected to the Oklahoma State Senate District 11 in 2004 and re-elected in 2008. She also was elected to the
Oklahoma House of Representatives for District 73 in the
49th Legislature for 2002–2004. She was the first freshman appointed to the Speaker's Leadership Team in the House of Representatives. In 2002, she was one of sixteen black women from twelve states selected as a Fellow for the NOBEL/Women (National Organization of Black Elected Legislators/Women) for the NOBEL/Women CAWP (Center for American Women and Politics/Eagleton Institute of Politics,
Rutgers University) Leadership Institute. During her time in the State Senate she became the only African-American to preside over the State Senate during the 2nd Regular Session of the 50th Legislature. She also served as Minority Whip for the Democratic Caucus. After serving 10 years in the legislature, Senator Eason McIntyre decided to retire from the legislature and not seek re-election. On April 2, 2011, she was elected as Chair of the Tulsa County Democratic Party for 2011–12. McIntyre holds memberships in the following organizations: Member, Vernon AME Church; former Chair of the Tulsa County Democratic Luncheon Club; 1921 Race Riot Design Committee; the Greenwood Re-Development Authority; the
NAACP;
Communications Workers of America Local 6086; and
Alpha Kappa Alpha sorority. Aside from her memberships she enjoys spending time with her terrier, Harry "Give'Em Hell" Truman. McIntyre gained some notoriety in late February 2012 when picketing Oklahoma's "Personhood Bill", Senate Bill 1433, by holding a sign that read "If I wanted the government in my womb, I'd fuck a Senator.". ==Committee membership==