MADISON, WI — The Trump administration's effort to weaken Obama-era gas mileage standards for cars and street vehicles is in the works. A major investigation by the New York Times has revealed how at least one Wisconsin legislator is being courted by the oil industry.

According to the New York Times investigation, one of the things Marathon Petroleum, the largest refinery in the U.S. is doing, is working with the American Legislative Exchange Council to draft and support legislation supporting the company's desire to weaken fuel standards. That model legislation is then rolled out across the U.S. by officials with ALEC ties, the Times has found.

Emails that were obtained by Documented, a watchdog group that tracks corporate influence in public policy show how Marathon has been working with Wisconsin legislators behind the scenes via ALEC.