Former New York Gov. Andrew Cuomo took to Buffalo on Sunday, the latest in a series of politicos to descend upon the city reeling from the racist mass shooting in which a white gunman is accused of killing 10 Black people May 14. Amid ongoing speculation about his own political plans, Cuomo denounced the attack and called on Congress to take action on gun control. “I am sickened by what happened here in Buffalo,” the former Democratic governor said at True Bethel Baptist Church, where his successor, Kathy Hochul, and numerous other electeds spoke the day after the shooting. “It was shocking, i…