(CNN) Massachusetts Sen. Elizabeth Warren for the first time on Monday night said that she would back a plan to do away with the Electoral College.

The process, she said, effectively disenfranchises voters in states dominated by one of the two parties.

"Come a general election, presidential candidates don't come to places like Mississippi. They also don't come to places like California or Massachusetts, because we're not the battleground states," Warren said at a CNN town hall in Jackson, Mississippi.

In 2016, former Secretary of State Hillary Clinton defeated President Donald Trump by nearly 3 million votes in the popular vote by running up big leads in Democratic strongholds. But she narrowly lost swing states like Wisconsin, Michigan and Pennsylvania, which handed Trump a clear victory on the Electoral College map.

"My view is that every vote matters," Warren said as the applause in Jackson began to build into an ovation, "and the way we can make that happen is that we can have national voting and that means get rid of the Electoral College -- and every vote counts."

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