Merriam Webster defines ‘justice’ as “…the maintenance or administration of what is just especially by the impartial adjustment of conflicting claims or the assignment of merited rewards or punishments”
That said, an ‘investigation’ predicated on a hoax cannot claim to be an ‘administration of what is just’ and, thus, cannot form a foundation for ‘obstruction of justice’ claims.
The entire case for so-called ‘Russia collusion’ was based on a Democrat-funded dirt dossier opposition research smear with NO EVIDENCE…just disinformation.
This was known, by the very DOJ prosecutorial team Mueller assembled and his FBI investigative squad…BEFORE the special counsel was formed.
You’d think a hall filled with lawyers (a.k.a., Democrats) would know such a partisan investigative fraud is the EXACT OPPOSITE of what true justice stands for.
Where there’s no justice, there can’t be ‘obstruction’.