Colorado Gov. Jared PolisJared Schutz PolisColorado Congress delegation, Governor asks Pentagon for base of Space Command base Blue Statesian band is looking together for electoral college Ex-Maine GOP gov: White people will get nothing to say if electoral college leaves MORE (D) signed a bill on Friday that would award state electoral colleges to the presidential candidate who wins the national referendum.
Polis signed the measure after both chambers of state legislatures passed the bill on the party line last month, while the Democrats drew heavily for the measure.
As part of the National Popular Vote Interstate Compact, Colorado now joins eleven other states and the District of Columbia.
"It is important to understand that the National Referendum Act significantly enhances the voice of Colorado in the election of the President of the United States," said John Koza, chairman of National Popular Vote, in a press release.
The joint agreement will only take effect if enough states sign up to produce 270 electoral votes – the number required to win the presidency.
The addition of Colorado's nine electoral votes gives a total of 181.
President TrumpDonald John TrumpDenver Post editors say Gardner endorsement was "flaw" NY attorney general: Evidence shows Trump abusing charity for presidential campaign Sanders says Trump administration is based on "Hate and Lies" MORE won the 2016 election with 304 electoral votes compared to 227 for Hillary ClintonThe Hillary Diane Rodham ClintonSanders Institute is being criticized by the editors of Denver Post and says Gardner's approval is a "mistake". Schumer: The Democrats will again try to publish a bill in which the Mueller report MORE will be published,
Clinton prevailed against Trump with nearly 3 million votes in the national referendum.