In fact, it would have to be the DoJ or Congress that did so - Biden could order the DoJ to stop, and arguably could have anyone in Congress killed or jailed without trial by stating that they presented a clear danger to democracy by trying to impeach him.
And considering that most of the other presumptive candidates for the GOP are even more unhinged than Trump, it’s hard to not see this as someone attempting to seat, say, Nikki Haley.