Former vice president Joe Biden holds his mask as he speaks about the Trump administration’s handling of the coronavirus pandemic in Wilmington, Del., on June 30. (Kevin Lamarque/Reuters)

The Trump and Biden presidential campaigns now see the coronavirus response as the preeminent force shaping the results of November’s election, prompting both camps to try to refocus their campaigns more heavily on the pandemic, according to officials and advisers of both campaigns.

Advisers to presumptive Democratic nominee Joe Biden see the covid-19 crisis as perhaps the clearest way yet to contrast the former vice president with President Trump, using the stumbling response and renewed surge in cases as ways to paint Trump as uninformed, incapable of empathy and concerned only about his own political standing.