Kevin Cramer has worked the hardest of anyone in Congress to lobby President Trump to act to counter a historic oil price crash battering the U.S. shale industry, a course of action in tension with Trump’s instinctive support for lower prices.

The North Dakota Republican, 59, a talkative first-term senator who says he speaks with the president once a week on oil policy matters, was Trump’s energy adviser during the 2016 campaign. But his voice during the pandemic-fueled oil market “crisis” has been louder and persistent.