It’s a sign of how the ideological lanes of the 2020 primary have blurred and overlapped and of the steady progress Warren is making as a candidate. But it’s also a statement on Bernie Sanders, Warren’s top rival for progressive votes. Sanders continues to face significant resistance from within the party — and nowhere more so than among the moderates and establishment players who blanch at his talk of democratic socialism.

Warren, on the other hand, is gaining traction among those who once rejected her muscular vision of liberalism. She’s drawn notice for her wide-ranging “I have a plan for that” policy playbook, which has just enough growth-and-opportunity, center-left measures to earn her a serious look from former detractors. The Massachusetts senator may be out of sync with party centrists, but she’s drawn at least one sharp line with Sanders that is resonating with prominent moderate voices as she surges into the top tier in national and early state polls.

“One is a Democratic capitalist narrative,” said Matt Bennett, a co-founder of Third Way, a centrist think tank that convened a conference of party insiders in South Carolina this week designed to warn about the risks of a nominee whose views are out of the political mainstream. “The other is a socialist narrative.”