Three months after an elementary school massacre in Connecticut reignited a debate over the nation’s gun laws, President Obama is urging Congress to “join me in finishing the job” by taking swift action on gun-control legislation.

Obama, in his weekly radio address released on Saturday, noted the preliminary steps taken in the Senate to advance such measures as universal background checks for all gun buyers and a federal crack-down on gun trafficking. But he chastised Congress for the slow pace of progress, contrasting their indecision with the widespread popular support across the country for strengthening the background check system and other proposals.