FILE - In this July 31,1973, file photo, H.R. Haldeman, a former top aide to President Richard Nixon, testifies before the Senate Watergate Committee in Washington. The Richard Nixon Presidential Library & Museum is declassifying and releasing 285 segments from an audio diary kept by Haldeman, from 1970 to 1973. (AP Photo/File)

This month marks the 50th anniversary of the break-in at the Democratic National Committee headquarters in the Watergate complex that eventually led to the resignation of President Richard Nixon.

A mostly forgotten aspect of the broader Watergate scandal was the revelation that the Nixon administration conspired to use the federal government's contracting and grant-making authority to reward supporters, punish enemies and solicit campaign contributions.

Some of those contributions led to indictments under a statute prohibiting federal contractors from making political expenditures. That statute remains in effect today. But, thanks to the Supreme Court's 2010 Citizens United decision, a contractor can now make unlimited political expenditures without violating the law — and keep it all a secret.

The justification for a contractor contribution ban is that public officials might be tempted to trade contracts for favors.

In a 2015 decision upholding the constitutionality of the federal contractor contribution ban, then-U.S. Circuit Judge Merrick Garland referenced a litany of public corruption cases involving contractors.

Those cases might never have been discovered if not for clues in publicly disclosed campaign contributions. But most of the political spending in which contractors may engage as a result of Citizens United is unlikely to see the light of day.

An episode involving energy utility Southern Company, which receives tens of millions of dollars a year through federal contracts, shows how the current regime works. In 2020, Southern Company gave $1 million to a 501(c) nonprofit called One Nation, which was run by a former chief of staff to Senate Minority Leader Mitch McConnell. The nonprofit spent nearly $100 million that year on advertisements praising Republican Senate candidates and attacking Democratic ones.

One Nation mainlined an additional $85 million into the Senate Leadership Fund, a super PAC also operated by McConnell's former chief of staff. The sole goal of the Senate Leadership Fund is "to build a Republican Senate majority," which happens to be McConnell's primary job.

Because 501(c) groups are not officially political entities, contractors are allowed to contribute to them even if they make political expenditures. Here, Southern Company was able to make an unlimited contribution essentially to a Republican campaign committee without violating the ban on contractors making political expenditures.

We know about Southern Company's million-dollar gift to McConnell's network because the company voluntarily disclosed it, which is a relatively uncommon practice.

Consider the case of another utility, Ohio-based FirstEnergy. An internal FirstEnergy presentation in 2017 expressed the company's preference for giving to 501(c) groups as "these are considered 'dark money' (entities) because they are not required to disclose where the donations come from."

Three years later — after FirstEnergy spent $60 million in dark money successfully pursuing an unfathomably generous bailout from the state legislature — a U.S. attorney accused the company of participating in "likely the largest bribery, money-laundering scheme ever perpetrated against the people of the state of Ohio." FirstEnergy agreed to pay a $230 million penalty to settle the charges.

Campaign finance law should be updated to vastly increase disclosure requirements and close the loophole that allows contractors to evade the contribution prohibition.

While passing legislation like this will be a challenge, a partial remedy could be applied right now. Biden could issue an executive order requiring federal contractors to disclose their contributions to entities that seek to influence elections.

Such a step would increase taxpayer confidence in the contracting process. It would also strike the first blow against dark money and offer a tangible way to address the perception and reality of corruption in our system.

Taylor Lincoln is research director of the Congress Watch Division of the consumer advocacy group Public Citizen. Lisa Gilbert is the organization's executive vice president. They wrote this for

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