-- U.S. presidential candidates are making final pitches to voters before ending a campaign season that has been largely reshaped by the COVID-19 pandemic.

-- Three of 4 voters express concerns about the possibility of violence on Election Day.

-- The novel coronavirus disease, as of Sunday, has infected more than 9.1 million people and killed nearly 231,000 in the country.

WASHINGTON, Nov. 2  -- As the Election Day is around the corner amid anxiety over its implications, U.S. presidential candidates are making final pitches to voters before ending a campaign season that has been largely reshaped by the COVID-19 pandemic.

Sitting President Donald Trump, also Republican presidential nominee, held rallies in five states in a campaign blitz on Sunday, while his Democratic challenger, Joe Biden, spent the day in Pennsylvania, a critical battleground state where polls showed the former U.S. vice president leading the incumbent.

Photo taken in Arlington, Virginia, the United States on Oct. 22, 2020 shows C-SPAN live stream of U.S. President Donald Trump (L) and his Democratic challenger Joe Biden attending their final debate in the 2020 presidential race. (Xinhua/Liu Jie)

TIGHT RACE

The race between Trump and Biden is also tight in other battlegrounds, including Florida, Michigan, Wisconsin, North Carolina, and Arizona. According to the RealClearPolitics polling average, Biden leads Trump only by 3.2 percentage points in these five states plus Pennsylvania.

Darrell West, vice president and director of Governance Studies at Washington, D.C.-based think tank Brookings Institution, told Xinhua that the battlegrounds will likely "determine the winner."

Nationally, Biden's support stands at 52 percent to Trump's 42 percent among registered voters, according to the final NBC News/Wall Street Journal poll released on Sunday.