Sen. Elizabeth WarrenElizabeth Ann Warren2020 Dems break political taboos by endorsing litmus tests Biden says Congress must move to protect abortion rights Harris seeks Iowa edge with army of volunteers MORE (D-Mass.) may have endorsed Hillary ClintonHillary Diane Rodham ClintonNevada Senate passes bill that would give Electoral College votes to winner of national popular vote 2020 Dems break political taboos by endorsing litmus tests Iowa Democrats brace for caucus turnout surge MORE for president Thursday night, but she heaped praise onto Clinton's rival, Sen. Bernie SandersBernie SandersIraq War looms over Trump battle with Iran 2020 Dems break political taboos by endorsing litmus tests Iowa Democrats brace for caucus turnout surge MORE, for bringing millions of voters into the Democratic Party.  

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"I take my cue on every part of this from Bernie himself," Warren said on MSNBC's "The Rachel Maddow Show" Thursday night. 
 
"I also think that what Bernie Sanders did was just powerfully important. He ran a campaign from the heart, and he ran a campaign where he took those issues and he really thrust them into the spotlight," Warren said. "He brought millions of people into the political process, millions into the Democratic Party, and for me, that's what it's all about."
 
Warren said Sanders is helping to guide the nation in a positive direction.
 
"Bernie has given us these issues. He's given us this moment. He's brought this light to it that we really can help push this country in the right direction," Warren said. 
 
Despite her respect for Sanders, Warren gave a strong endorsement to Clinton, calling her a "fighter."