Percy Priest began his career as an educator, teaching in Maury County, Tennessee. He later transitioned to a political career, serving as a representative in Tennessee's congressional districts. Priest held significant leadership roles, including serving as the House majority whip. His professional expertise extended to managing institutional risk in high-finance before entering public service. Priest's contributions to public service and legislative leadership are commemorated through various landmarks named in his honor.

Percy Priest's political career reveals a unique blend of regional advocacy and ideological flexibility, particularly in his economic policies and stance on Southern segregation. His leadership in the House Commerce Committee suggests a strategic focus on industrial interests, while his refusal to sign the Southern Manifesto indicates a divergence from the rigid segregationist views of many contemporaries. Priest's legislative record shows an unexpected convergence with opposing factions on environmental regulations, revealing a highly calculated approach to protecting regional industrial interests.