Obama's view of the U.S. as just another country is catching on

Optimism in the country's system of government has dropped to a new low when measured against polls going back 36 years, and the public's belief that America is the greatest nation on earth, while still high, has fallen significantly from its level a generation ago.

These results from the latest ABC News/Yahoo News poll, coming before next week's midterm elections, suggest that public disenchantment extends beyond its economic and political roots to broader questions about the country's governance and American exceptionalism.

The bottom hasn't fallen out of national pride: Seventy-five percent call the United States "the greatest country in the world." But that's down from 88 percent when the same question was asked in 1984. And nearly a quarter, 23 percent, now take the alternative view, saying America used to be the greatest country "but isn't anymore." That's up from 9 percent.

Optimism about the system has taken an even bigger hit in this poll, produced for ABC and Yahoo News by Langer Research Associates. Back in 1974 – shortly after Richard Nixon's resignation in the Watergate scandal – 55 percent of Americans were optimistic about "our system of government and how well it works." Today, 33 percent say that, the lowest number in nearly a dozen measurements taken across the decades. (None, though, were taken in the early 1990s, the last time economic disgruntlement was as high as it is now.)