The Investor’s Business Daily tracking poll results released Tuesday have Biden ahead nationally by just 2.3 percentage points, at 48.1 percent to Trump’s 45.8 percent among likely voters.

The daily poll, which includes Green and Libertarian candidates, launched on Oct. 12 and has found increasing support for Trump and decreasing support for Biden going into Nov. 3’s Election Day.

Just a week ago, on Oct. 13, the poll found Biden sailing with an 8.6 percentage-point lead.

IBD said Trump is closing a gap among independents and has benefited from stronger support among Republicans than Biden has among Democrats. Biden held 90 percent support among Democrats in the latest poll, compared to 94 percent of Republicans backing Trump, the New York Post reported.

But IBD said Trump is lagging among elderly voters and those in the suburbs, groups that helped him win in 2016.

Investor’s Business Daily is widely regarded as a credible pollster, given an “A/B” grade by polling-focused news site fivethirtyeight.com.

In 2016, IBD’s poll was one of the few to predict Trump’s win — a shocking upset that caught most media and politics professionals off-guard. Its final 2016 poll found Trump ahead by 1.6 points. Ultimately, Trump lost the popular vote to Hillary Clinton by 2.1 points, but won the Electoral College 304-227 thanks to narrow wins in many states.

The RealClearPolitics average of recent national polls has Biden ahead by 7.6 percent, though in many swing states, the margin is tighter. Trump allies believe he has many “silent voters” who won’t publicly admit their support but will show up to vote.

The Biden campaign released a memo Saturday warning that Trump can “still win the race” and is “neck and neck” in several battleground states, where the incumbent is hosting daily mega-rallies and where Biden’s campaign got off to a late ground game amid the COVID-19 pandemic.

“Even the best polling can be wrong and that variables like turnout mean that in a number of critical swing states we are fundamentally tied,” Biden campaign manager Jen O’Malley Dillon wrote in a three-page message.

“If we learned anything from 2016, it’s that we cannot underestimate Donald Trump or his ability to claw his way back into contention in the final days of a campaign, through whatever smears or underhanded tactics he has at his disposal.”

The move comes one day after the nonpartisan Commission on Presidential Debates announced the debate would be held virtually, following the president’s diagnosis of and hospitalization for the novel coronavirus.

“On October 8, CPD announced that for the health and safety of all involved, the second presidential debate, scheduled for October 15 in Miami, would be conducted virtually,” the CPD said in a statement, officially announcing the cancellation of the debate. “Subsequently, the campaigns of the two candidates who qualified for participation in the debate made a series of statements concerning their respective positions regarding their willingness to participate in a virtual debate on October 15, and each now has announced alternate plans for that date.”

“It is now apparent there will be no debate on October 15, and the CPD will turn its attention to preparations for the final presidential debate scheduled for October 22,” the CPD added.

Immediately after that announcement was made about a virtual debate Thursday morning, Trump said in an interview with Fox Business anchor Maria Bartiromo he would not “waste my time with a virtual debate” and was not going to participate.

The Trump campaign later Thursday said the president would participate if the debate — as well as the third scheduled debate — were pushed back a week. The Biden campaign shot down that idea, noting the dates had been decided in June.

With Trump refusing to participate to a virtual format, Biden agreed to participate in an ABC News town hall moderated by ABC News Chief Anchor George Stephanopoulos in Philadelphia on Oct. 15, the original date of the second debate, taking questions directly from voters.

Trump also scheduled his own town hall event for the night. He’ll be taking part in an event aired on NBC Thursday night in Miami, sources familiar told ABC News.

Biden’s reacted to the cancellation of the second presidential debate in a statement through a spokesperson, calling it “shameful” that Trump “ducked the only debate in which the voters get to ask questions.”

“Vice President Biden looks forward to making his case to the American people about how to overcome this pandemic, restore American leadership and our alliances in the world, and bring the American people together,” campaign spokesman Andrew Bates said. “It’s shameful that Donald Trump ducked the only debate in which the voters get to ask the questions — but it’s no surprise. Everyone knows that Donald Trump likes to bully reporters, but obviously he doesn’t have the guts to answer for his record to voters at the same time as Vice President Biden.”

Trump 2020 communications director Tim Murtaugh slammed the “biased commission” for canceling the Oct 15 debate, saying “there’s no medical reason to stop” it.

“There’s nothing that says that President Trump and Joe Biden can’t debate together without the overlords at the commission having a say in the matter,” Murtaugh added. “We would be glad to debate one-on-one without the commission’s interference.”

Trump is also expected to host an event at the White House on Saturday, the first day his doctor cleared him to participate in “public engagements,” and a rally in Sanford, Florida, on Monday.

Both candidates have agreed to participate in the next debate, moderated by Kristen Welker of NBC News, on Oct. 22.

Biden leads Trump 46 percent to 38 percent, a 2-point gain for Biden compared to previous polls conducted earlier this month.

The survey released Friday found that 8 percent of respondents were undecided in the race, a slight uptick from the previous poll, while 4 percent said they prefer a different candidate and 3 percent don’t plan to vote in November.

Biden holds a 10-point lead over Trump among independent voters in the poll, 39 percent to 29 percent. That’s an increase from a 2-point lead he held in the survey earlier this month.

Slightly more Democrats in the poll said they’d back Biden in November than Republicans who said they would support Trump, though both candidates had comparable levels of support from within their parties.

Among Democrats, 85 percent said they would back Biden if the election were held today, while 81 percent of Republicans said they would vote for Trump.

The survey was conducted Aug. 15-18, with some responses gathered on the first two days of the Democratic National Convention this week, where Biden formally accepted his party’s nomination.

The survey of 2,840 registered voters was conducted online and has a margin of error of plus or minus 1.84 percentage points. The previous Hill-HarrisX poll was conducted Aug. 11-14.

The presumptive Democratic presidential nominee’s lead fell from a 7 percentage point in a July 17-20 survey to 3 percentage points in this August 2-5 poll.

Five percent of voters said they would cast their ballots for someone else if the election were held today, while 3 percent said they do not plan to vote.

Nine percent of registered voters in the poll are still unsure.

The survey found Trump made gains among voters in two key demographics.

Support among Midwestern voters rose from 38 percent two weeks ago to 42 percent in this most recent poll. Support for Biden among the same group fell from 45 percent to 39 percent.

The president also edges out Biden among independents in the latest poll, with 35 percent support, a 4 percentage point increase from the last survey.

By contrast, 33 percent of independents prefer Joe Biden as their candidate for president.

The Hill-HarrisX poll was conducted online among 2,850 registered voters between August 2 and 5. It has a margin of error of plus or minus 1.84 percentage points.

Biden has a 6-point lead over Trump in Florida, based on the CBS News poll released Sunday. The former vice president has 48 percent support and Trump has 42 percent in the Sunshine State, The Hill reported.

In Texas, the candidates are in a statistical dead heat, with Trump at 46 percent and Biden at 45 percent.

Trump and Biden both have 46 percent support in Arizona.

The three battleground states are also experiencing surges in coronavirus cases. The poll found that voters most concerned with COVID-19 were more likely to support Biden.

Biden had overwhelming support — 72 percent in Arizona, 67 percent in Florida, and 68 percent in Texas — among voters who are “very concerned” about COVID-19, pollsters found.

Biden had the support of only 15 percent of Florida voters who are “not concerned” about COVID-19, and his support was even lower among voters in Arizona and Texas who agreed.

The poll also found that Biden has more support among likely female voters than Trump in each of the three swing states. Biden is also doing better with women than Democratic presidential candidate Hillary Clinton did in 2016, CBS noted.

Biden has also narrowed the gap among voters aged 65 and older. Trump leads Biden among seniors in Florida by 8 points, at 50 percent support compared with Biden’s 42 percent. CBS exit polls from 2016 found Trump had 57 percent support among seniors in Florida and Clinton had 40 percent support.

Biden also has a significant lead over Trump among Hispanic voters in each of the three states, garnering 69 percent support in Arizona, 61 percent in Florida, and 60 percent in Texas, based on the poll. Trump received just 21 percent support among Hispanic voters in Arizona and 30 percent in Florida and Texas.

Trump, however, continues to lead among white voters without a college degree. Sixty-eight percent of likely white voters without a college degree in Texas said they would vote for Trump, as did 60 percent in Arizona and 57 percent in Florida. Biden earned just 24 percent support in Texas and 31 percent support in Arizona and Florida among the same group of voters.

The surveys, which were conducted between July 7 and July 10, are based on samples of 1,099 registered voters in Arizona, 1,229 voters in Florida, and 1,212 voters in Texas. The margins of error for the Arizona, Florida, and Texas surveys are 3.8 percentage points, 3.5 percentage points, and 3.3 percentage points, respectively.