Elizabeth Warren Has Lots of Plans. Together, They Would Remake the Economy.

Policy makes up a large part of Ms. Warren’s pitch to voters on the campaign trail, where, from school gyms to house parties, she guides audiences through one proposal after another. She explains her wealth tax by likening it to the property tax paid by homeowners, only broadened to include the “diamonds, the stock portfolio, the Rembrandts and the yachts” of the super-rich.

“Right now in America, there is a real hunger,” Ms. Warren said at a Democratic Party event in Iowa on Sunday. “There are people who are ready for big, structural change in this country. They’re ready for change, and I got a plan for that.”

“I got a plan” has become a personal trademark for Ms. Warren, drawing cheers from crowds and inspiring T-shirts and tote bags. And her policy announcements serve as fund-raising opportunities, too, helping to drive news coverage and give her supporters more reasons to donate.

Though Ms. Warren has far outpaced her major rivals in issuing detailed policy plans, some are working to make up ground.

In just one day last week, Senator Cory Booker of New Jersey offered a housing plan that would provide a tax credit to renters, former Representative Beto O’Rourke of Texas introduced a voting rights plan and Senator Kirsten Gillibrand of New York issued a plan to legalize marijuana.

Mr. Biden — who entered the race in late April, four months after Ms. Warren — introduced a climate plan last week and an education plan the week before. Senator Kamala Harris of California has put forth plans on teacher pay, gun control, equal pay and abortion. Senator Bernie Sanders of Vermont has issued plans about education, rural America and banking.

Mr. Sanders, like other senators in the presidential race, is also drawing on legislation he has proposed in Congress, most notably his “Medicare for all” bill, the latest version of which he introduced in April. Ms. Harris has a bill to create a big tax credit for low- and middle-income Americans. Ms. Warren likes to talk about the anticorruption package that she proposed last year.