I don't know if you guys follow ammo prices, but after Pres. Trump was elected, the prices across the board dropped significantly (as did the prices for firearms). Fast forward to 2019 and I'm seeing the prices for ammunition rising significantly in the last few months. The main calibers especially -- 22LR, 9mm, .223/5.56x45, and 7.62x39 have increased about 10-15% overall when looking at bulk pricing (5000rds/case in 22LR, and 1000 rds/case in all others). Many online retailers are already sold out of the most popular bulk 22LR brands in case packaging.
At the local gun range, the old timers are looking back on their collective historical experiences and are suggesting that folks are again getting very nervous about the coming election year. Also, the NRA scandal(s), California-like ammunition law initiatives in other states, and the new "Red Flag" firearms laws are taking their toll. As a result people across the nation are slowly arming and stockpiling ammunition again.
We may quickly be returning to the fearful political climate of the early 2010's, when shortages were the norm, and fear mongering was the order of the day, and we may well see those Walmart ammunition trolls starting up their shenanigans again very soon.