Ok here you go then try these reasons. Like I said I live here and these were news articles I remember when they happened. Lamar Alexander's Skeleton Closet What got him elected was voters with very short memories and being a former Bush SR Cabinet Member. You don't live in the city that got stuck with the Whittle Communications building, The US Pavilion, the Sunsphere, a debt that our grandkids will pay on because of it, etc. Alexander had some very questionable deals. His association with the Butcher Brothers among them.
So what do I know about politics? Well let's put it this way. If those banks had not failed Bill Clinton likely would not have ever been POTUS but neither would had Lamar. So guess who was being readied for a political career? Hint Alexander defeated him once and got his campaign financial support for the second term as governor. Local, state, & regional politics, had a few key persons pulling the puppet strings in both parties.
What you don't know is during the early 1980's both parties shafted this area with questionable deals.
The site you linked to is straight out of the Michael Moore playbook. Absolutely nothing but inuendo and guilt by association nonsense.
If you don't like the guy, fine. But his voting record and statements as a Senator have been fine with me, and you are gonna have to do a lot better then that to actually convince me that there is anything but political sniping going on here. You know the criticism is worthless when they start attacking his flannel shirt.