I read the whole piece and still have no idea what his legal argument is for a specific crime, except that he is hoping for obstruction.
However:
Ultimately, the political argument is just a way to dress up the grim fact that the Republican majority seems indifferent to the strength and severity of the charges that Mueller is developing. Its sole allegiance is to the preservation of political control, to which end Republicans have embraced an embarrassing series of diversionary tactics and bogus defenses of the president. Indeed, there seems to be nothing Trump could do that would justify impeachment in Republicans’ eyes.
Congressional Republicans are all in on defense of party over country. They are determined for temporary political gain to prop up a leader who is a rogue, a constitutional menace, and yes, a criminal no less than Nixon. They have lost all sense of constitutional duty. If they do not find a way to regain it, history will judge them harshly.
I give you Bill Clinton....
According to this viewpoint, law enforcement can fabricate evidence, lie on affidavits, swear out false warrants, and conduct illegal surveillance. However, the true crime is attempting to defend against civil rights violations and false prosecution under color of authority.
I concur with a commenter above: why is proglib red meat like this even posted here? What purpose does it serve? To be informed that a certain % of the population wishes so badly to remove Trump that they will entertain these kinds of notions? Don't we already know some portion of the country hates traditional culture and would do anything to see Trump supporters in concentration camps?
There is no reasoning with these people. It is actually war, and they must be defeated.