Senator Tom Udall, D-N.M., said Tuesday that he plans to propose a constitutional amendment to reform campaign finance laws following the Supreme Court decision that allows unlimited independent expenditures by corporations, unions and other groups.

Udall previously called the Supreme Court decision “a victory for special interests at the expense of the average American.”

“The best long term solution is a constitutional amendment that would prevent the court from overturning sensible campaign finance regulations,” Udall said to the U.S. Senate Rules Committee on Tuesday. “I would welcome the opportunity to join my colleagues in introducing such an amendment.”

Udall said the second best choice is to create comprehensive reform legislation. Udall will introduce the “Let the People Decide Clean Campaign Act” with co-sponsor David Obey, D-Wisc.

“The Act does not attempt to fine-tune the existing congressional campaign finance system or tweak the edges,” Udall said. “Rather, it makes fundamental, wholesale changes to fundraising by candidates, regulation of outside groups, and the role of political parties.”