Patrick Marley for WaPo:

But vulnerabilities persist. The risks this year will depend on the particulars of the election — and the closeness of the results. Many election officials and experts are worried false narratives could again take off, eroding public trust and leading to chaos, confusion and, in a worst-case scenario, violence. David Becker, the executive director of the Center for Election Innovation and Research, said that those who oversee elections in key states are once again bracing to be harassed and threatened for doing their jobs.

“This is not a hypothetical,” he said. “This is not fearmongering. This is what happened in 2020 and since, on a widespread scale.”

Trump has not committed to accepting the outcome of the upcoming election, no matter who wins, and he has already claimed without evidence that Democrats will cheat. He has also threatened to jail election officials and others “involved in unscrupulous behavior” related to voting.

Trump spokeswoman Karoline Leavitt in a statement did not directly answer whether Trump would honor the outcome as determined by election officials, saying only that he would “accept the results of a free and fair election.”

Here are some of the vulnerabilities that experts are most worried about:…