Status: Marriage equality.
In Brinkman v. Long, a same-sex couple represented by private counsel challenged Colorado’s marriage ban in state court. The plaintiffs argued that denying them access to marriage violates their rights under both the Colorado and U.S. Constitutions. On July 9, 2014, the court struck down the state's ban on marriage equality. The judge stayed his decision pending an appeal.
In McDaniel-Miccio et al. v State of Colorado, a group of married same-sex couples said that Colorado laws prohibited state recognition of their valid out-of-state marriages, while several unmarried couples challenged the state’s prohibition on marriage equality. The complaint was filed in February 2014.
On October 6th, the U.S. Supreme Court denied cert to all marriage equality cases pending review, including cases in Tenth Circuit states Oklahoma and Utah. Since Colorado is also in the Tenth Circuit, the Supreme Court ruling created a binding precedent under which the state fell, allowing same-sex couples to marry.