There isn’t one. In 2018, they primaried out Reginald Tate and urged out my State Senator, Thelma Harper, to retire in favor of a younger leftist. All 5 Dems are moonbats.
Also recently the Dems purged probably the last center-right Black Dem member, Rep. John DeBerry (not via the ballot box, but just by stripping him of appearing on the Dem ballot because he “votes like a Republican”). He’s running for reelection as an Independent.
You said they purged “2 of the 3 right-of-center Black Senate Democrats.”