Important NYT analysis:

Hillary Rodham Clinton will seek out donors to her presidential campaign from a Democratic fund-raising landscape vastly altered since her first presidential bid and far more ideologically aligned with the party’s liberal activists.

Democrats now get far less money from Wall Street, military contractors, health care companies and other industries that for decades ladled out cash more evenly to both parties, according to a New York Times analysis of data collected by the Center for Responsive Politics, a watchdog group. And the party now relies far more on constituencies that have achieved new clout in the era of “super PACs” and carefully targeted digital fund-raising.

As many as one-fifth of elite Democratic “bundlers” — volunteers who raise money from friends and business associates — are active in gay-rights causes or are themselves gay or lesbian. Outside Democratic groups rely heavily on wealthy environmentalists, such as the billionaires Tom Steyer and Michael R. Bloomberg, and on labor unions, whose financial might has been magnified by the Supreme Court’s Citizens United decision in 2010 even as their membership rolls decline.