A Democratic Party member, she serves in the Tennessee Senate representing district 33 since 2022.

[2] She was appointed to the Tennessee Senate in March 2022 by the Shelby County Commission after fellow Democrat Katrina Robinson was expelled due to her indictment on charges of wire fraud.

in Political Science from Saint Mary's College in Notre Dame, Indiana.

[4] Lamar defeated Doris DeBerry-Bradshaw and Juliette Eskridge in the 2018 Democratic primary.

[6] She is also the president of Tennessee Young Democrats, a member of The National Organization of Black Elected Legislative Women (NOBEL Women), and a member of National Black Caucus of State Legislators.