America's score fell to 7.98 last year from 8.05 in 2015, below the 8.00 threshold for a full democracy, the EIU announced in a report on Wednesday. That put the world's largest economy on the same footing as Italy, a country known for its fractious politics.
A flawed democracy is a country with free elections but weighed down by weak governance, an underdeveloped political culture and low levels of political participation, according to the EIU. Other flawed democracies in 2016 included Japan, France, Singapore, South Korea and India, the report said.
However, Washington can't point fingers at President Donald Trump for the nation's downgrade.
"The U.S. has been teetering on the brink of becoming a flawed democracy for several years, and even if there had been no presidential election in 2016, its score would have slipped below 8.00," the report explained. Instead, dwindling trust in government, elected representatives and political parties is to blame.
"Trust in political institutions is an essential component of well-functioning democracies. Yet surveys by Pew, Gallup and other polling agencies have confirmed that public confidence in government has slumped to historic lows in the U.S. This has had a corrosive effect on the quality of democracy," the report found.