Weiner, Founder and Chairman of Crimzon Rose Accessories, along with his partner, Felix Porcaro, has created one of the top 10 largest jewelry manufacturing companies in the United States with approximate annual revenues of $65 million with offices in the United States and Asia. Weiner has also been a delegate at four Democratic National Conventions and was a member of the 1988 Democratic National Site Selection Committee. He also served on the National Democratic Institute's Board of Directors from 1988 to 1990. He served as treasurer of the Democratic Governors' Association until January 2003. Weiner has been elected as an At-Large member of the Democratic National Committee since 1992. In previous national campaigns, Mr. Weiner served on the Finance Board of Directors and was a national vice-chairman for the 1984 Mondale for President Campaign, the 1988 Dukakis for President Campaign, and 1992 & 1996 Clinton for President Campaigns. In 1976, he was a member of the national staff for the successful Carter for President Campaign and from 1977 to 1978 he was an aid to the President Carter's Appointment Secretary. Weiner was a national vice-chairman and the Rhode Island Fundraising Chairman for the Dukakis for President Campaign.