Americans increasingly say the events of Sept. 11, 2001, had a more negative than positive impact on the country, and predictions for the pandemic’s long-term impact are even more downbeat, according to a Washington Post-ABC News poll.

Ahead of the 20th anniversary of the attacks on the World Trade Center and Pentagon on Saturday, more than 8 in 10 Americans say those events changed the country in a lasting way. Nearly half (46 percent) say the events of 9/11 changed the country for the worse, while 33 percent say they changed the country for the better.

That represents a shift from 10 years ago when Americans were roughly divided on this question, and it marks an even larger swing from the first anniversary of the attacks in 2002. Back then, 55 percent said the country had changed for the better.