The creation of the TVA, a cornerstone of the New Deal, constituted a massive public works investment in the construction of dams and the electrification of Tennesssee, Kentucky, Mississippi, and Alabama
The Senate voted to acquit former President Trump of charges of inciting the January 6th attack on congress. Although Senate Minority Leader Mitch McConnell expressed that Trump was legally culpable for a "disgraceful dereliction of duty", he concluded that the Senate is unable to convict former officials. The Senate had previously held it has the power to do so.
In 1866, the House voted 105-20 to try former Confederate President Jefferson Davis for treason -- the trial ultimately never occurred.
In 1882, Congress passed the Edmunds Anti-Polygamy Act, which prohibited polygamy and 'unlawful cohabitation'. The Act set off a series of court cases which culminated in the disincorporation of the Church of Jesus Christ of Latter-day Saints.
The Voting Rights Act of 1965 prohibited racial discrimination in voting by protecting voting rights. It banned poll taxes and literacy tests and required states with historians of Jim Crow discrimination to seek advance clearance before changing and requiring states with histories of Jim Crow discrimination to obtain advance clearance to change laws governing voting.