Perhaps the most sophisticated use of mathematics in public speech was
Nixon's announcement that:
"The rate of increase in the inflation rate has gone down."

I.e., the -third- derivative in the price of money is negative.
Graphically, the -second- derivative in the value of inflation is
negative, i.e., the graph is concave down.
I.e., inflation is increasing at a decreasing rate.

(inflation is (negative) the derivative/secant of the price of money)

.....
note how here it's used to obfuscate: inflation is still high, and
getting worse, just not as quickly as before.