Recent Reuters/Ipsos opinion polls show Americans view Russia as bigger threat than Iran.
This week the Trump administration reintroduced sanctions on Tehran.
It also unleashed brand new sanctions on Moscow.
The number of U.S. adults who view Iran as a threat to the United States has decreased.
Over the past three years, the poll shows those numbers are down.
67% of U.S. adults say Iran poses a "moderate," "serious" or "imminent" threat to the United States.
That's down from 75% in March 2015.
