DC Tribune suggests McConnell may be under investigation by Mueller

[Hortensis]

19. You're right that McConnell would fight of course.

But if McConnell had somehow gotten involved in Russia's occult warfare, by now Mueller would know it, at very least strongly suspect, and be gathering evidence.

McConnell]s a very careful operator, but he's intensely unethical and corrupt and could conceivably have gotten caught up somehow. We have reason to believe some members of congress do have ties to Russia, some very longstanding, and may have committed illegal acts that threaten to destroy the party. As a top leader it's McConnell's business to know what's going on in his party and to make decisions and take actions to protect it, and his position of power.

McConnell also reportedly is also the largest single recipient of LEGAL Russian donations, via a PAC that serves him. How clever of his sort to create a legal conduit for unlimited foreign donations to PACs. But it wouldn't be astonishing if Mueller was investigating those connections to Russia and found something actionable among what should be highly illegal transactions.

Also, notably, it wouldn't have to be Mueller. McConnell's been famously selling his influence his entire political life. He's careful, but conceivably being careful enough in an environment where scrutiny and will to prosecute are lacking might not be careful enough when they are not. It's not impossible that he could be among the many who will be brought down by increased scrutiny resulting from Trump's upsetting the political apple cart.

Not holding my breath, but hoping that even one of McConnell's many illicit dealings is also illegal and finally officially acted on is definitely more than a silly pipe dream.