Answer:
Allow the claim, because the electrician has timely asserted the claim against his partner, and the court has supplemental jurisdiction.
Step-by-step explanation:
In the given scenario after the electrician has been served with the complaint, he in turn filed twelve days later with the court and served, without leave of the court, a summons and third-party complaint on his partner.
The electrician and the partner are in different states.
Supplemental jurisdiction gives a federal court the right to hear additional claims related to a case before them. Even though the court would not normally have jurisdiction if the claim were presented independently.
So the court can here the claim even when the partner is from another state. Also the electrician asserted the claim in a timely manner.