JACKSON, Miss. — Senator Elizabeth Warren, the Massachusetts Democrat who has based her presidential bid on trying to outpace rivals with robust policy proposals, added more ideas to her liberal agenda on Monday night: getting rid of the Electoral College, removing Confederate statues, and creating a national commission to study reparations for black Americans.

Ms. Warren’s remarks came during an hourlong CNN town hall at Jackson State University, a historically black college in the capital of the deeply Republican state. While reiterating her familiar positions on regulating corporations and upending Washington lobbying, Ms. Warren also sought to present new ideas to a national audience that is still getting to know her.

“I believe we need a constitutional amendment that protects the right to vote for every American citizen and makes sure that vote gets counted,” Ms. Warren said in response to a question about voter disenfranchisement. “We need to put some federal muscle behind that, and we need to repeal every one of the voter suppression laws that is out there.”

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She then noted that most presidential candidates never campaign in Mississippi or her home state of Massachusetts during a general election because those are not battleground states in the Electoral College. Many Democrats have become sharp critics of the Electoral College after Al Gore in 2000 and Hillary Clinton in 2016 won the national popular vote but lost the Electoral College vote, and therefore the presidency.