According to the news, the director of the La Cross airport said the event was canceled due to a lease issue, not concerns over the coronavirus.
The rally has been replaced with a rally at Janesville about 175 miles away from La Crosse. https://www.greenwichtime.com/news/article/Trump-s-plans-for-rally-in-western-Wisconsin-up-15613117.php
Sounds suspiciously like the same kind of crap that was pulled on the Nevada rallies...
I like having it at Janesville the home of that rat weasel Paul Ryan. He did everything he could to flip the house of representatives to the Democrats.