What will be the impact on price if a demand curve shifts to the left?

Likewise, a shift in the demand curve either downward or to the left will usually result in a lower equilibrium price and a lower equilibrium quantity.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp

the speech convinced americans that the ussr was an enemy, rather than an ally, which led to the creation of the truman doctrine.