Passage: After the 74th Hunger Games, Katniss Everdeen and Peeta Mellark return to District 12, where President Snow visits Katniss. Snow explains that her actions in the Games have inspired uprisings. He orders her to use the upcoming Victory Tour to convince people that her actions were out of love for Peeta and not defiance against the Capitol, or District 12 will be destroyed, "just like District 13". He makes Katniss promise that the two will not lie to each other.

Question: Which President paid a call on Katniss in District 12?
President Snow