Prominent Democrats’ endorsements had a significant impact on the election prospects of fellow party members, and he was known for demanding unwavering loyalty from those who gained his approval.
“The Black community, almost overwhelmingly, looked at him as a fighter for them,” said his son, former Congressman Lacy Clay (D-MO).
In the years after the enactment of the 1965 Civil Rights Act, black St. Louisans moved quickly to capture power in a city that had long separated its communities via historically discriminatory redlining policies. Clay, Sr. was ahead of his time, gaining his first election to the St. Louis Board of Aldermen in 1959 at the age of only 28.

He became a staple during sit-ins as members of St. Louis’ black community protested the segregation enforced by businesses such as White Castle and Howard Johnson, which divided black and white customers into separate seats and hotel rooms.
“St. Louis was no different from any of the cities in the South,” Clay said in a 1998 profile. “We had rigid segregation — not by law, but by custom.”St. Louis Democrats who came of age under Clay’s shadow paid tribute to him on Friday.

St. Louis Mayor Cara Spencer told SLNPR that Clay’s “courageous legacy of public service to St. Louis and the country is etched in his historic legislative battles for the poor, underrepresented and disenfranchised.”
“Millions have him to thank for the Family and Medical Leave Act and raising the minimum wage,” Spencer said. “Generations of Black congressional leaders have followed in his footsteps as members of the Congressional Black Caucus, which he co-founded in 1971. We thank him for his generous service to a city he
Congressman Wesley Bell (D-MO) called Clay a ”giant — not just for St. Louis, not just for Missouri, but for the entirety of our country.”