What to know about Brooke Rollins, Trump's pick for agriculture secretary

President-elect Donald Trump has selected former White House aide Brooke Rollins to lead the Department of Agriculture. Rollins has agriculture ties but also a strong relationship with Trump. The president-elect has prized loyalty as he assembles his second administration. She would lead a sprawling agency that traces back to the Civil War era when most Americans lived on farms. Now, USDA is responsible for everything from farm aid to supplemental food programs for low-income Americans. Trump has not offered many details about agricultural policy in his second term. But the department could be in the spotlight depending on how his proposed tariffs and immigration policy affects the nation's food supply.