“Dyed in the wool” means to be permanently colored a certain way. That is a prime description of Hillary supporters. It doesn’t matter that she is in so much trouble that about half a century ago she would have faced a firing squad for her treasonous actions. People still support her mindlessly. Proof is on the next page:
Typical
Both are lying cheating blow hard so this should be simple!
So this shows they support the person not fir what they believe