Pope Francis will release his encyclical calling for action on climate change this week and Republicans have a choice to make: him or the money changers: 

“Both of their campaigns have courted influential and deep-pocketed donors, such as the billionaire brothers Charles G. and David H. Koch, who vehemently oppose such climate policies.

“But the papal encyclical could put Catholics who question that established climate science in a tough position, particularly in a year in which at least five Catholics may run for the Republican presidential nomination.”