As Hunter Biden pardon sparks backlash, experts say it can't be overturned

No commander-in-chief has ever granted clemency to his child, experts say.

President Joe Biden pardoned his son, Hunter Biden , on Sunday .

Biden called the prosecution of his son "a miscarriage of justice" by his own Department of Justice .

Hunter Biden pleaded guilty over the summer to federal charges of failing to pay $1.4 million in taxes.

The full pardon is not just for Hunter Biden's recent convictions but covers any crime he may have committed over a nearly 11-year span.

"The breadth of that pardon suggests that President Biden understands that without that, Hunter Biden could be targeted for a vindictive prosecution," Kim Wehle , a law professor and ABC News contributor, said of the time frame covered in the pardon.

In 2001 , then-President Clinton pardoned financier and fugitive Marc Rich , whose ex-wife participated in Clinton 's presidential campaigns and was a major donor to his presidential library.

In 2007 , George W. Bush commuted the 31-month federal sentence for Scooter Libby , former chief of staff for Vice President Dick Cheney .

In 2017 , Trump pardoned former Maricopa County , Arizona , Sheriff Joe Arpaio , who was charged with criminal contempt of court for disobeying a federal judge's order.