There is nothing covert in the message. It's open declaration that asserts that the U.S. used to be great but has fallen from greatness and needs to rediscover the principles that made it great.
If you think something sinister is implied, then say it straight.
No, it means exactly what is stated. He is making unemployment go down (lower than its been in a decade), stock market up...record breaking, gdp is up..double the rate of Obama, number of people on food stamps is significantly lower, ....
Personally my business is having a record year. No dog whistle just facts.
