I have begun to notice (in Blount County) a few Joe Carr yard signs and bumper stickers. Much less for Lamar Alexander except for the areas outside of the voting places. A local minor candidate, John D. King, has probably more signs out than either one, all of them along roadways, not in yards. I hope that he doesn't pull many votes from Carr.
A friend of mine went to the Republican headquarters in Blount County today to get a Joe Carr yard sign. He got the very last one. (There are more on order.) There were many Alexander signs available, but they were not moving. That isn't a definitive sign, but not a bad one either—especially since this is Alexander's home county. I'm assuming that Alexander is still the strong favorite, but this one could be close.
Really got my fingers crossed for a Bratt-style surprise. Remember Mississippi!
Ping
As hopeful as your report “seems”, you have to consider the people of TN who might as well make Lamar14! their password on all their Internet accounts.
If Lamar wins the primary it doesn’t matter even a tad who wins the election.