Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) called for change in the Electoral College system on Monday as electors across the country gathered to cast their ballots.

Sanders noted Clinton’s lead over president-elect Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE in the nationwide popular vote in arguing that the 200-year-old system should be changed.

He said such a result was not democratic, strongly suggesting that the Electoral College should not be used to decide the winner of the presidential election.

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"Trump received 2.5 million fewer votes than Clinton, yet he'll soon be president. Clearly, in a democratic society, this shouldn't happen,” he tweeted.

Trump received 2.5 million fewer votes than Clinton, yet he'll soon be president. Clearly, in a democratic society, this shouldn't happen. — Bernie Sanders (@SenSanders) December 19, 2016

We need to change the electoral college. — Bernie Sanders (@SenSanders) December 19, 2016

Sanders has previously called for a thorough look into the Electoral College process.

Last month, Sanders called the system “on the surface a little bit weird,” because the losing nominee was more than 2 million votes ahead of the president-elect. He said the system was “unfair” to many states.

"And then what ends up happening is campaigns are basically about 16, 17 states, battleground states, in this country, and I think that's unfair to the other 30-plus states that would also like to be part of the political process,” Sanders said in a November interview with CNN.

As of about an hour before the former Democratic presidential candidate posted his tweets, 268 electoral votes had been cast for Trump, and 160 for Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE.

The final anticipated electoral vote count from Election Day were 306 for Trump and 232 for Clinton.