The “full and unconditional” pardon is aimed at protecting the president’s son from future prosecution by the Trump Justice Department.

Earlier on Sunday, Biden accused Republicans of unfair treatment and claimed Hunter was "treated differently" by prosecutors. Hunter Biden was convicted of three felony firearm offenses in a Delaware trial earlier this year, and then pleaded guilty to multiple felony tax offenses in September.

In a joint statement, IRS special agents Gary Shapley and Joe Ziegler blasted Joe Biden's explanations for the pardon of his son as "excuses."