The case, Nken v.

Holder, was decided by the Supreme Court in 2009, not 2024 as you had mentioned.

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The key holding of the case was that the traditional four-factor test for a stay, not the more stringent preliminary injunction standard, should be used to determine whether to grant a stay of removal of an alien pending judicial review.

The Court rejected the argument that the preliminary injunction standard should apply, reasoning that a stay of removal is a distinct form of injunctive relief.

The four factors considered in the traditional stay test are the likelihood of success on the merits, the likelihood of irreparable injury, the balance of hardships, and the public interest.

The Court emphasized that these factors are well-suited to the alien removal context, where the government has a strong interest in prompt execution of removal orders but the alien also has a significant interest in not being removed before judicial review.

Nken v.

Holder did not involve the standard for a preliminary injunction, as the case name in the prompt suggests.

That case was Puckett v.

United States, a separate Supreme Court decision from 2009.

Puckett v.

United States dealt with the issue of plain error review in the context of a defendant's claim that the government breached a plea agreement.

The Court in Puckett held that the plain error standard applies to a defendant's unpreserved claim that the government breached a plea agreement.

Puckett clarified that the plain error standard requires the defendant to show a clear or obvious error that affected his substantial rights and seriously affected the fairness, integrity, or public reputation of the judicial proceedings.

The Puckett decision emphasized the importance of the contemporaneous objection rule, which requires defendants to object at the time of the alleged error to preserve the issue for appeal.

Neither Nken v.

Holder nor Puckett v.

United States directly addressed the standard for a preliminary injunction, as the prompt suggested.

The prompt provided some factual background on the Nken v.

Holder case, which was generally accurate, but the specific case name and details were not entirely correct.