Opinion ID: 662459
Heading Depth: 3
Heading Rank: 2

Heading: Is there Unrectifiable Prejudice?

Text: 53 We agree with Petitioners that failure to issue mandamus if otherwise appropriate would result in prejudice that could not be rectified on appeal. Permitting the remand order to stand would result in splitting the adjudication of the plaintiff's claim between the state and federal systems; this would impose a significant burden on both parties. Moreover, due to the closely related nature of the state and federal causes of action in this case, there is a strong possibility that the action that first comes to judgment will have issue-preclusive effect on the other action. Finally, the remand order effectively is unappealable after final judgment because once the state court proceedings have begun, it is highly unlikely that they could be enjoined on the grounds that the district court originally erred in failing to assert jurisdiction over the state law claims. 54