(CBS4) – Colorado voters should start looking for their presidential primary ballot in the mail. Ballots started being mailed out on Monday.

The primary is set for March 3.

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(credit: CBS)

Voters who are unaffiliated will receive ballots for both Democrats and Republicans. Only one ballot can be returned; if a voter sends both, neither will be counted.

The deadline to get the ballots in is March 3 at 7 p.m.

The primary is the first of three statewide elections this year.

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Campaign 2020 Resources

See a list of important dates in Colorado’s 2020 election cycle.

Register to vote through the Colorado Secretary of State’s office.

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LINK: Primary Election FAQs