No one can accuse Texas Republican Rep. Lamar Smith of being a do-nothing legislator.

As chairman of the House Science, Space and Technology Committee, Smith has used his newly granted subpoena power to investigate two state attorneys general, eight private science groups and even the National Oceanic Atmospheric Administration over climate change. He also has recently worked with Rep. Jason Chaffetz, the Republican chairman of the House Oversight and Government Reform Committee, on investigating former Secretary of State Hillary Clinton’s private email server.