President Donald Trump is planning to replace Gary Shapley, the acting commissioner of the Internal Revenue Service just three days after appointing him, according to news reports Friday.

Shapley is the fifth leader to leave the agency this year. 

The decision to replace Shapley came after Treasury Secretary Scott Bessent told Trump that Shapley was put in the agency without his knowledge at the direction of Department of Government Efficiency head Elon Musk, according to NBC News.

Deputy Treasury Secretary Michael Faulkender will likely become the next acting IRS commissioner. 

Shapley and Special Agent Joseph Ziegler became well known after they investigated former first son Hunter Biden's alleged financial crimes, but were removed from the probe after telling Congress that the Justice Department interfered with their probe.