Amendment 54 proposes amending the Colorado Constitution to: - prohibit certain government contractors from contributing to a political party or candidate for the contract's duration and two years thereafter; - prohibit contributors to ballot issue campaigns from entering into certain government contracts relating to the ballot issue; - apply the prohibitions on campaign contributions and ballot issue contracts to any contractor with a government contract or contracts that does not use a public and competitive bidding process soliciting at least three bids and with a total value greater than $100,000 in a single year; and - apply the prohibitions on campaign contributions and ballot issue contracts to a labor organization holding a collective bargaining agreement with a state or local government.