(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Christopher Neubert, Arizona State University and Kathleen Merrigan, Arizona State University (THE CONVERSATION) With Congress back in session, legislators will take up a set of issues they haven’t comprehensively addressed since 2018 – the year the last farm bill passed. Farm bills are massive pieces of legislation that address a diverse constellation of topics, including agricultural commodities, conservation, trade, nutrition, rural development, energy, forestry and more.