The survey of 1,000 voters was taken Sept. 13-16, before the death of Supreme Court Justice Ruth Bader Ginsburg on Friday added a volatile, new element that could reshape voter priorities. In addition, the three presidential debates are an unpredictable factor in the final weeks of the campaign. The first debate is set for Sept. 29.

For now, however, most voters say they are settled in their choices. More than 70% say the debates won’t matter much to them, including 44% who say they will not matter at all to their choice, a record high dating to 2000…

Attention to the campaign was already at a record level before the expected battle over replacing Justice Ginsburg, which will likely draw new attention to the consequences of presidential elections. A record 75% of voters in the survey rated their interest in the election at a 10 on a 10-point scale…

While voters see Mr. Trump as the better steward of the economy, they increasingly view him as the weaker option for dealing with coronavirus. Mr. Biden now has a 22-point lead, 51% to 29%, on who is better to manage the outbreak, up from 11 points in June. Mr. Trump has faced sustained criticism for playing down the threat while pushing to reopen the economy.