Michael Wines in the NYT:

For the people who run elections at thousands of local offices nationwide, 2024 was never going to be an easy year. But the recent anonymous mailing of powder-filled envelopes to election offices in five states offers new hints of how hard it could be.

The letters, sent to offices in Washington State, Oregon, Nevada, California and Georgia this month, are under investigation by the U.S. Postal Inspection Service and the F.B.I. Several of them appear to have been laced with fentanyl; at least two contained a vague message calling to “end elections now.”

The letters are a public indicator of what some election officials say is a fresh rise in threats to their safety and the functioning of the election system. And they presage the pressure-cooker environment that election officials will face next year in a contest for the White House that could chart the future course of American democracy.

“The system is going to be tested in every possible way, whether it’s voter registration, applications for ballots, poll workers, the mail, drop boxes, election results websites,” said Tammy Patrick, chief executive for programs at the National Association of Election Officials. “Every way in which our elections are administered is going to be tested somewhere, at some time, during 2024.”