The two polls were conducted after Trump announced on Friday that he had tested positive for coronavirus and were mostly completed before he returned to the White House from Walter Reed National Military Medical Center on Monday.

Additional polling showed a majority of voters in both states — 62 percent in Nevada and 58 percent in Ohio — believe Trump did not take adequate precautions to protect himself from Covid-19, including about 20 percent of respondents who identified as Trump supporters. Thirty-two percent of voters in in both states said he did take adequate precautions.

Focusing on leadership during Covid-19, Nevada respondents by a 10-point margin said they trusted Biden more than Trump to handle the pandemic. In Ohio, that margin was seven points.

Twenty-seven days out from next month's election, Biden continues to poll well with women. The Democratic nominee led Trump among women polled by 11 percent in Ohio and 14 percent in Nevada. Additionally, Biden polled ahead of Trump among suburban voters by 32 points in Nevada and 22 points in Ohio.

A New York Times/Siena College poll from last month showed the former vice president only leading in Nevada by 4 points. In 2016, Hillary Clinton won Nevada by 2 points, while Trump won Ohio by 8 points.

The New York Times/Siena College poll was conducted from Oct. 2-6, surveying 661 likely voters in Ohio and 660 likely voters in Nevada. The margin of error for the data from each state is plus or minus 4.3 percentage points.