Where is the line between prosecutorial discretion and obstruction of justice?

[drray23]

I know that the Justice Department has leeway to decide whether to take a case or not. However, is there a point at which it can be argued that it is an obstruction of justice?
For example, Patel and Bondi explicitely stopping the investigation into Renee Good's murder because it could go against Trump's narrative?

[SamKnause]

1. The rule of law no longer applies !

I can't be the only one who recognizes this.

The Trump administration does what it wants when it wants.

Then they sit back and wait to be stopped.

[FBaggins]

2. Rhetorically... it can be argued that's what is happening

It’s tougher legally. There isn’t anyone with the power to hold them accountable… and even if there was, prosecutors have significant immunity for their prosecutorial decisions.

The next administration could have some options if we take it back in ‘28… but they’ll almost certainly receive pardons