The Alliance for Hippocratic Medicine and the Alliance for Reproductive Rights

The challengers are the Alliance for Hippocratic Medicine and there are also some other anti-abortion medical associations and three individual doctors. They clearly don't support abortion, they don't support reproductive rights but why can they bring a lawsuit? In federal court it's actually a constitutional requirement that you have to have a sort of personal stake that in the case so that if a court says okay you win then they're doing something for you.