President Biden is finalizing plans to endorse major changes to the Supreme Court in the coming weeks, including proposals for legislation to establish term limits for the justices and an enforceable ethics code, according to two people briefed on the plans.

He is also weighing whether to call for a constitutional amendment to eliminate broad immunity for presidents and other constitutional officeholders, the people said, speaking on the condition of anonymity to discuss private deliberations.

The announcement would mark a major shift for Biden, a former chair of the Senate Judiciary Committee, who has long resisted calls to reform the high court. The potential changes come in response to growing outrage among his supporters about recent ethics scandals surrounding Justice Clarence Thomas and decisions by the new court majority that have changed legal precedent on issues including abortion and federal regulatory powers.