"Organizing for Action -- a group that formed out of President Obama's re-election campaign -- has posted five tweets in the past week about climate change using the Twitter account."

"OFA's mission is to promote the president's agenda on a wide range of issues, from guns to immigration. But now that it's focused on global warming, there's some tension with the agenda inside the administration.

This week, Organizing for Action unveiled urging supporters to 'Call Out the Climate Change Deniers.' The group recently produced highlighting Republicans who question the science of climate change -- including House Speaker John Boehner."

Ari Shapiro reports for NPR May 23, 2013. [2]