Even before the election, food luminaries had started brawling over Obama’s legacy. In a New York Times Magazine cover story, author Michael Pollan accused the administration of bowing to the demands of corporate agribusiness. “They went wobbly in the knees,” former Sen. Tom Harkin said in the piece. Sam Kass, the former White House chef and food czar, fired back, saying that people like Pollan dismiss steps forward because they fall short of their “idyllic” vision of farming. “We are so good at turning our wins into losses, it’s stunning,” he said. (Here’s an elaboration of Kass’ case).

Then America elected a president who loves fast food and overcooked steaks. While Donald Trump has explicitly pledged to roll back Obama’s actions on climate change and health care, he hasn’t said what he’ll do on the food and ag front. In fact, despite filling out the rest of his Cabinet, Trump has yet to pick a new agriculture secretary, leaving his intentions extra murky. With someone as capricious as Trump at the helm, this is a terrible time to predict the future of American agriculture, but it’s the perfect moment to take a hard look at the past and ask what policies have made a difference.

Former Iowa Gov. Tom Vilsack served as ag secretary for the entire eight years of the Obama administration — outlasting all other Cabinet members. Appointing Vilsack to lead the department was arguably the biggest farm policy decision made by the outgoing president: The massive Department of Agriculture runs everything from nutrition policy to farm conservation programs.