According to Catholic News Agency:
The U.S. Conference of Catholic Bishops (USCCB) on Monday launched a campaign urging Catholics to contact outgoing President Joe Biden and ask him to commute the death sentences of the 40 men currently on federal death row to life in prison.
The USCCB Action Center posted online a statement calling on individuals to urge the President to commute the sentences. The webpage contains a suggested letter to the President and provides a form for sending and posting the request online.
Meanwhile, on Sunday in the Vatican, Pope Francis joined in the call for commutation. In his Sunday Angelus, he said in part:
Today, it comes to my heart to ask you all to pray for the prisoners who are on death row in the United States. I believe there are thirteen or fifteen of them. Let us pray that their sentence be commuted, changed. Let us think of these brothers and sisters of ours and ask the Lord for the grace to save them from death.
Neither the Bishops' statement nor that of the Pope makes mention of President Biden's Roman Catholic faith.