DC Lobby is a term used to describe the lobbying efforts of organizations and individuals in Washington, D.C. PAC stands for Political Action Committee, which is an organization that raises money to support political candidates or causes. IST stands for Independent Spending Team, which is a group of individuals who are not affiliated with any political party but who spend money to influence the outcome of elections. URGE stands for Unrestricted Grassroots Engagement, which is a type of lobbying that involves grassroots organizing and mobilizing people to take action on issues. All of these terms are related to the DC Lobby and are used to describe the various ways in which organizations and individuals can influence policy and politics in the nation's capital.