Midterm election results suggest that the power of the N.R.A. may be diminishing.
Two years of progressive organizing built the blue wave.
Ms. McBath became a racial justice activist after her son, Jordan Davis, was killed by a white man who was later convicted of murder.
The Black Lives Matter movement and the abuses and policy decisions it has highlighted have become an integral part of races that will decide control of Congress in November.
The willingness to back some nicotine start-ups while condemning others illustrates the delicate ethical dance that investors are trying to perform.