Internet Explorer 11 is not supported

For optimal browsing, we recommend Chrome, Firefox or Safari browsers.

Marijuana Legalization Becomes Official in Colorado

Gov. John Hickenlooper, a Democrat who opposed the measure, signed the proclamation that places Amendment 64 into the constitution.

Gov. John Hickenlooper, a Democrat who opposed the measure, signed the proclamation that places Amendment 64 into the constitution.

Caroline Cournoyer is GOVERNING's senior web editor.