After AIPAC helped Cori Bush lose her congressional primary in Missouri this week, the lobby group could turn to Ilhan Omar’s race in Minnesota next week. The American Israel Public Affairs Committee appears to have the momentum in helping defeat members of the progressive squad in their Democratic primaries this summer. In June the right-wing pro-Israel lobby group, through its super PAC the United Democracy Project, helped oust Jamaal Bowman in New York, making it the most expensive election in US House history. And this week, in the second most expensive House race, AIPAC was the biggest do…