Trump has also vowed to expand the death penalty to other crimes, including child rape, human trafficking, drug trafficking, and people who murder police.
In 2008, the Supreme Court declared the death penalty for child rapists unconstitutional when the child survives, the American Bar Journal reported Monday.
However, with Trump in the White House, a Republican majority in the Senate and conservatives holding a 6-3 advantage in the current Supreme Court, proponents are hopeful for a reversal.
"The Supreme Court has said the death penalty should only apply when the death of the victim is involved, but that is subject to change with the makeup of the current Supreme Court," Mangino told Fox News Digital.
Three of the four justices who dissented in the 2008 Kennedy v. Louisiana decision are still on the court Justices John Roberts, Clarence Thomas and Samuel Alito.
"When it is a question of the execution of a condemned man, the State does not dispose of the individual's right to life. In this case it is reserved to the public power to deprive the condemned person of the enjoyment of life in expiation of his crime when, by his crime, he has already disposed himself of his right to live." -Pope Pius XII