Sen. Barbara BoxerBarbara Levy BoxerFormer Dem aide makes first court appearance on charges of posting GOP senators' info online Ex-House intern charged with 'doxing' GOP senators during Kavanaugh hearing Capitol Police arrest suspect in doxing of GOP senators MORE (D-Calif.) will introduce legislation on Tuesday to get rid of the Electoral College, after Hillary ClintonHillary Diane Rodham ClintonWatchdog org: Tillerson used million in taxpayer funds to fly throughout US Republicans cancel airtime in swing Vegas district The Democratic Donald Trump is coming MORE lost the presidential election despite leading in the popular vote. 

"In my lifetime, I have seen two elections where the winner of the general election did not win the popular vote," Boxer said in a statement. "In 2012, Donald TrumpDonald John TrumpThe Guardian slams Trump over comments about assault on reporter Five takeaways from the first North Dakota Senate debate Watchdog org: Tillerson used million in taxpayer funds to fly throughout US MORE tweeted, 'The electoral college is a disaster for a democracy.' I couldn't agree more. One person, one vote!"

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She added that Clinton, whom she supported, is "on track to have received more votes than any other presidential candidate in history except Barack ObamaBarack Hussein ObamaFive takeaways from the first North Dakota Senate debate Live coverage: Heitkamp faces Cramer in high-stakes North Dakota debate Khashoggi prompts Trump to reconsider human rights in foreign policy MORE."

"The Electoral College is an outdated, undemocratic system that does not reflect our modern society, and it needs to change immediately," she said.

Clinton is currently leading Trump by nearly a million votes, according to a Cook Political Report tracker of the national popular vote, but Trump won the Electoral College, leading the former secretary of State 290-232.

According to Pew, Clinton would be the fifth person to win the popular vote but lose the election, with the most recent being Al GoreAlbert (Al) Arnold GoreThe Democratic Donald Trump is coming Al Gore warns: UN climate change report shows 'we have a global emergency' Political tribalism started in the 1990s, says NBC News political reporter MORE in 2000.

Boxer's legislation would amend the Constitution to abolish the Electoral College. Even if it is approved by Congress it would need to be approved by three-fourths of the states within seven years before it would take effect. 

Trump called the Electoral College "genius" on Tuesday morning, despite past criticism. 

The tweet comes after Trump said during a "60 Minutes" interview on Sunday that he still has issues with the Electoral College.

“I’m not going to change my mind just because I won,” the president-elect said. “But I would rather see it where you went with simple votes. You know, you get 100 million votes and somebody else gets 90 million votes and you win.”