In February, Marostica was the only Republican who announced plans to support legislation to repeal Colorado's Arveschoug-Bird limit, which capped the growth of general fund expenditures at 6 percent per year. Marostica faced pressure from prominent Republicans, including Independence Institute President Jon Caldara and former state treasurer Mark Hillman, to drop his support; in response, he referred to Hillman and Caldera as "has-beens" and "losers," earning him additional criticism from House Republicans; Marostica later promised to apologize to Hillman and Caldera. Marostica was the prime sponsor of the bill in the House, where, after surviving an attempted Republican filibuster in the Senate, it was ratified, and later signed into law. Marostica also broke with other Republicans as the only member of his party to vote in support of a failed effort to repeal Colorado's death penalty; the proposal passed the Colorado House by one vote, but was defeated in the Senate.