Patrick Caldwell

Patrick Caldwell is a reporter in Mother Jones' D.C. bureau.

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Rick Perry’s Dakota Access Pipeline business entanglements

The Energy Department pick is on the board of the company behind the pipeline.

Rick Perry is on the payroll of a controversial oil pipeline company in Texas

Most presidential candidates step down from corporate boards to avoid conflicts of interest. Not the ex-Texas governor.

3 things Rick Perry knows about global warming: It’s a hoax, he’s not a scientist, and … we forget the third

Oops.

Jim Webb, Democratic presidential hopeful, slams Obama over Keystone bill veto

Webb vented his frustration with a virulent tweetstorm. Here's what he got wrong.

Why the EPA chief needs China’s help to tackle global warming

Combined, China and the U.S. produce nearly half of the world's carbon emissions.