Attorney General John Suthers and former Congressman David Skaggs. (Provided by C.L. Harmer)

Colorado Attorney General John Suthers and former Congressman David Skaggs tonight will discuss the TABOR lawsuit, aimed at upending the constitutional amendment that strictly controls spending and taxation.

Suthers, a Republican, and Skaggs, a Democrat, are scheduled to appear on Rocky Mountain Public Broadcasting System’s Colorado Quarterly program hosted by RMPBS President Doug Price. It airs at 7:30 p.m.

The lawsuit was filed in 2011 against Democratic Gov. John Hickenlooper, in his capacity as governor, challenging the constitutionality of the 1992 voter-approved Taxpayer’s Bill of Rights. Plaintiffs said TABOR, put on the ballot by anti-tax advocate Douglas Bruce, takes power away from state and local elected officials. Skaggs is one of the attorneys representing the nearly 35 plaintiffs, comprised mostly of Democrats but including former state Sen. Norma Anderson, R-Lakewood, and former state Rep. Bob Briggs, R-Westminster.

Suthers’ office, which defends the governor’s office, argued that the plaintiffs did not have legal standing to sue, saying a federal court “is not a forum for rehashing political arguments” but the U.S. District Court in August 2012 allowed the lawsuit to move forward. Suthers appealed that decision, which was heard last month by the U.S. Tenth Circuit Court of Appeals in Denver. No decision has been made yet.