The presidency of Herbert Hoover began on March 4, 1929, when Herbert Hoover was inaugurated as President of the United States, and ended on March 4, 1933. He sought a balance among labor, capital, and the government, and he has been variously labeled a corporatist or associationalist. Hoover made extensive use of commissions to study issues and propose solutions, and many of those commissions were sponsored by private donors rather than by the government. One of the commissions started by Hoover, the Research Committee on Social Trends, was tasked with surveying the entirety of American society. Hoover believed that amicable business-labor relations were an important component of a prosperous economy. Though Hoover had originally tried to stop the bill, he chose to sign it into law as he feared that Congress would simply override a veto. With the goal of opening up more jobs for U.S. citizens, Secretary of Labor William N. Doak began a campaign to prosecute illegal immigrants in the United States.