We've long passed that point. We have people openly accusing him of treason, of hating America, watching four Americans die in Benghazi for entertainment, etc. All while mainstream figures provide an air of legitimacy to all this, fanning the flames.
So when these scandals come and go from mainstream attention, they'll continue to fester on the far right, and the people frothing at the mouth right now will be wondering how did he not pay for his crimes. To be fair so far Washington republicans aren't beating the impeachment drum overall, but at some point soon enough they'll jump the shark. It seems pretty clear we're in Clinton 98 mode now, a new conspiracy each month.
I wouldn't be surprised if part of this is meant to slow down the immigration push, and give republicans an out (Obama poisoned the well with his scandals!).