New Hampshire was U.S. President Donald Trump's latest stop in his reelection campaign.
The day before on Saturday, local time, he had visited four states - Florida, North Carolina, Ohio and Wisconsin - before returning to the White House.
He claimed that the nation is turning the corner on COVID-19 and mocked his Democratic challenger Joe Biden for rallying in the form of drive-ins.
But the Trump administration is facing another potential outbreak.
The Wall Street Journal reports that at least 5 people in Vice President Mike Pence's circle, including his chief of staff Marc Short have tested positive.
A spokesman said Pence himself tested negative and will resume his campaign schedule.
Biden spent Saturday in his home state of Pennsylvania, a key battleground, where he slammed Trump for his response to the pandemic.
He said that the U.S. death toll of more than 220-thousand means Trump does not deserve a second term.
Biden had earlier enjoyed support from former U.S. President Barack Obama who rallied in Florida, also using the drive-in format.
With no physical rally scheduled for Sunday, the Democratic presidential nominee is hosting a virtual "I Will Vote Concert".
Meanwhile, running mate Kamala Harris campaigned in Michigan.
Han Seong-woo, Arirang News.