U.S. Rep. Steve Cohen (D-Memphis, TN) announced that he is filing six articles of impeachment against the Chief Justice of the United States Supreme Court, John Roberts.
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The six articles of impeachment were summarized by Cohen in a statement:

1) The Chief Justice has allowed the court to become a partisan force, breaking the constitutional guarantee of a republican form of government.
2) Under Roberts’ leadership, the court has systemically given preferential treatment to the wealthy over the people.
3) The Chief Justice has violated his oath of office to do, “equal right to the poor and the rich” by endorsing a campaign finance system that favors the wealthy at the expense of the citizenry.
4) The Chief Justice violated the Constitution and judicial oath by usurping Congressional legislative roles and exempting the President from criminal liability for his conduct.
5) The Chief Justice’s leadership has made decisions in an arbitrary, unexplained, and inconsistent way that violates Constitutional protections.
6) Chief Justice Roberts violated statutory and ethical obligations regarding financial disclosures such as reporting assets which presented the perception of conflicts of interest.

From House.gov
Congressman Cohen Introduces Six Articles of Impeachment Against Supreme Court Chief Justice John Roberts