On August 4, Cori Bush defeated ten-time incumbent William Lacy Clay to become Democratic nominee for Missouri’s 1st congressional district. Her victory in this November’s general election is all but a shoo-in, in a heavily Democratic area covering parts of St. Louis County and St. Louis city.

Marking the end of fifty years’ control by Clay and his father before him, Bush’s win sets her up to become the first black woman to represent the district. She achieved this after playing an active role in the multiple uprisings associated with St. Louis’s Black Lives Matter movement, following the murder of Michael Brown in 2014 and the 2017 non-indictment of officer Jason Stockley for the murder of Anthony Lamar Smith.

Alongside Bush’s win, other results in St. Louis confirmed a shift in its politics, with the reelection of circuit attorney Kim Gardner and treasurer Tishaura Jones. All three are black women regarded as progressives; all three defeated more establishment Democrats despite the odds being stacked against them, from super PAC financing to media smears and racist and sexist slurs. Further signaling this sea change, it’s been just two years since Bush ran and lost to Clay by a 20-point margin, in a campaign featured in the Netflix documentary Knock Down the House alongside her soon-to-be colleague Alexandria Ocasio-Cortez.