Amy McGrath, the Democratic Party's candidate in its effort to oust Republican Senator Majority Leader Mitch McConnell (R - Ky) from his Senate seat, recently hired a new campaign manager, Dan Kanninen. Kanninen is an old hand at running campaigns and is the CEO of a consulting firm. Of course, what the Dems really want on the national level is for MConnell to cease to be the Majority Leader. They're not necessarily dead set against his returning to DC next year as the Minority Leader. Although (a) the Kentuckians among them are, and (b) it would look like a nice extra kick from karma if he lost in his own district and didn't return at all. So ... what do we know about McGrath? We know that she has an appealing biography and that she has raised a lot of money. But she's been trailing in recent polls, even as those polls differ widely in how they depict the size of the margin. Some have her within striking distance, others have McConnell very comfortable at 17 p...