A federal judge on Tuesday temporarily blocked the Trump administration's efforts to reallocate more than $4 billion in federal funding geared toward natural disaster mitigation projects, arguing the transfer could lead to "irreparable harm" to flood-prone areas.

A federal judge has temporarily halted the Trump administration's plan to reallocate more than $4 billion in federal disaster preparedness funds, marking a legal victory for 20 states that challenged the move.

The judge this week granted an order barring the federal government from spending the funds for other purposes until the court issues a final judgment.