Democratic presidential candidate Joe Biden pulled further ahead of President Donald Trump in Wisconsin and Pennsylvania, building momentum in two states that could decide the winner of November`s election, Reuters/Ipsos opinion polls showed on Monday.

The polls showed the former vice president leading Trump by 7 percentage points in both states. A week earlier, Biden was up by 6 points in Wisconsin and by 5 in Pennsylvania.

Reuters/Ipsos is polling likely voters in six states - Wisconsin, Pennsylvania, Michigan, North Carolina, Florida, and Arizona - that will play critical roles in deciding whether Trump wins a second term in office or if Biden ousts him.

Below is a state-by-state look at Reuters/Ipsos findings, based on the online responses of likely voters, which include responses from some who cast ballots ahead of the formal Nov. 3 Election Day, which is increasingly common due to the coronavirus pandemic:

WISCONSIN (Oct. 6 - Oct. 11):
    * Voting for Biden: 51%
    * Voting for Trump: 44%
    * 20% said they already had voted.
    * 52% said Biden would be better at handling the coronavirus pandemic. 38% said Trump would be better.
    * 47% said Trump would be better at managing the economy. 46% said Biden would be better.

PENNSYLVANIA (Oct. 6 - Oct. 11):
    * Voting for Biden: 51%
    * Voting for Trump: 44%
    * 6% said they already had voted.
    * 51% said Biden would be better at handling the coronavirus pandemic. 42% said Trump would be better.
    * 50% said Trump would be better at managing the economy. 45% said Biden would be better.

FLORIDA (Sept. 29 - Oct. 6):
    * Voting for Biden: 49%
    * Voting for Trump: 45%
    * 50% said Biden would be better at handling the coronavirus pandemic. 41% said Trump would be better.
    * 49% said Trump would be better at managing the economy. 45% said Biden would be better.
    * 7% said they already had voted.
   
ARIZONA (Sept. 29 - Oct. 7):
    * Voting for Biden: 48%
    * Voting for Trump: 46%
    * 49% said Biden would be better at handling the coronavirus pandemic. 43% said Trump would be better.
    * 52% said Trump would be better at managing the economy. 42% said Biden would be better.
    * 3% said they already had voted.

MICHIGAN (Sept. 29-Oct. 6):
    * Voting for Biden: 51%
    * Voting for Trump: 43%
    * 50% said Biden would be better at handling the coronavirus pandemic. 41% said Trump would be better.
    * 49% said Trump would be better at managing the economy. 44% said Biden would be better.
    * 10% said they already had voted.

NORTH CAROLINA (Sept. 29-Oct. 6):
    * Voting for Biden: 47%
    * Voting for Trump: 47%
    * 47% said Biden would be better at handling the coronavirus pandemic. 45% said Trump would be better.
    * 52% said Trump would be better at managing the economy. 40% said Biden would be better.
    * 8% said they already had voted.

The Reuters/Ipsos opinion polls are conducted online in all six states in English, as well as in Spanish in Arizona and Florida.

-- In Wisconsin, from to Oct. 6 to Oct. 11, it gathered responses from 1,002 adults, including 577 likely voters, and had a credibility interval of 5 percentage points.
-- In Pennsylvania, from to Oct. 6 to Oct. 11, it gathered responses from 1,002 adults, including 622 likely voters, and had a credibility interval of 5 percentage points.
-- In Florida, from Sept. 29 to Oct. 6, it gathered responses from 1,100 adults, including 678 likely voters, and had a credibility interval of 4 percentage points.
-- In Arizona, from Sept. 29 to Oct. 7, it gathered responses from 1,099 adults, including 663 likely voters, and had a credibility interval of 4 percentage points.
-- In Michigan, from Sept. 29 to Oct. 6, it gathered responses from 1,098 adults, including 709 likely voters, and had a credibility interval of 4 percentage points.
-- In North Carolina, from Sept. 29 to Oct. 6, it gathered responses from 1,100 adults, including 693 likely voters, and had a credibility interval of 4 percentage points.

Source: Reuters