Her effort, which goes far beyond the fundraising and endorsement speeches in which prospective presidential candidates typically engage, has encompassed work in all 50 states and close coordination with more than 150 campaigns. The result is a wide-ranging network that includes those running for state treasurer in Nevada, state legislature in Iowa and congressional offices across the country.

It is unmistakably aimed at some of the early-primary states that Warren would need to contest in a presidential campaign. She has deployed staffers to all four early primary states — two to New Hampshire and one each to Iowa, South Carolina, and Nevada — as well as to traditional powerhouses such as Ohio, Florida, Michigan and Wisconsin.

“I feel the urgency of the moment nationally,” Warren said in an interview. “It’s two parts: It’s holding Donald Trump accountable for what he does. It’s also trying to push this country toward working better for hard-working families.”