Then-Secretary of State Hillary Rodham Clinton (L) greets Sen. Elizabeth Warren (D-Mass.) in 2013. (Photo by Chip Somodevilla/Getty Images)

More than 190 progressive leaders and activists in Iowa and New Hampshire are calling on Hillary Rodham Clinton and any other 2016 Democratic presidential candidates to make "big, bold, economic populist ideas" the centerpiece of their campaigns.

The leaders in the states that host the first presidential caucus and primary election released a joint statement on Tuesday urging Clinton, a former secretary of state, to adopt many pillars of Sen. Elizabeth Warren's domestic policy agenda, including Wall Street reform and expansion of Social Security.

The effort is being coordinated by the Progressive Change Campaign Committee, which is launching a website, ReadyForBoldness.com, to promote the push. The PCCC has long organized political support for Warren, a senator from Massachusetts who despite pleas from supporters on the left has said she is not running for president.

In its joint statement, the Iowa and New Hampshire leaders said: "We urge all candidates for president to campaign on big, bold ideas -- such as establishing a national goal of debt -free college at all public colleges and universities, expanding Social Security benefits instead of cutting them, creating millions of clean-­energy jobs, reducing big­-money influence in politics, breaking up the 'too big to fail' Wall Street banks that crashed our economy, and ensuring that working families share in the economic growth they help create.”

The statement's signatories include former Sen. Tom Harkin, a longtime liberal firebrand and former presidential candidate from Iowa who retired from the Senate in January;  Rep. Dave Loebsack (Iowa); former Reps. Carol Shea Porter (N.H.), Paul Hodes (N.H.), Dave Nagle (Iowa) and Berkley Bedell (Iowa); 66 state legislators and 23 county Democratic Party chairs from Iowa and New Hampshire; and labor and clergy leaders in both states.

Adam Green, co-founder of the Progressive Change Campaign Committee, said in a statement, "The best way for Democrats to win the 2016 presidential election is by campaigning on bold Elizabeth Warren-­style ideas that are popular with voters across in red, purple, and blue states. ‘Ready For Boldness’ isn’t about any one candidate -- it’s about shifting the political environment and ensuring the Democratic Party stands for big, bold, popular ideas."