Joe Biden speculation is reaching a breaking point

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New Clues Emerge Regarding Possible Joe Biden Run

Speculation is mounting that Vice President Joe Biden's decision on the 2016 presidential race is fast-approaching.

"Hearing more out of Bidenworld that announcement that he's in race could leak out Sunday or Monday," New York magazine's Gabriel Sherman wrote Friday.

Earlier that day, Sherman penned a piece titled, "We Are Already Months Into the Biden Campaign," which pointed to all of the steps Biden has taken to prepare for a presidential campaign.

Those steps included a reported Friday meeting with a major labor official, Harold Schaitberger, president of the International Association of Fire Fighters.

CNN's Jim Acosta reported that Biden "talked about campaign strategy with Schaitberger and indicated a final decision on whether he would run for president is imminent."

See photos of Biden as he mulls over a presidential run:

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Joe Biden as he mulls over a presidential run
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Joe Biden speculation is reaching a breaking point
NEW YORK - SEPTEMBER 10: Stephen talks with Vice President Joe Biden, on The Late Show with Stephen Colbert, Thursday Sept 10, 2015 on the CBS Television Network. (Photo by Jeffrey R. Staab/CBS via Getty Images)
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"The source described the call as one of many the vice president is making to potential backers of a Biden candidacy," Acosta added.

Additionally, billionaire grocery-store magnate John Catsimatidis said during his Sunday morning radio show, "The Cats Roundtable," that he had recently spoken with Biden. And Biden apparently seemed ready to launch a campaign for the White House.

"I was with Vice President Joe Biden last night. He was in New York," Catsimatidis said. "I spent about five minutes with him. I don't know, I think he may run. You never know."

If Biden did get into the race, he would have the potential of scrambling what has thus far been a virtual one-on-one primary race between former Secretary of State Hillary Clinton and Sen. Bernie Sanders (I-Vermont).

Polls show Clinton would remain the clear front-runner for the Democratic nomination. But Biden could offer establishment Democrats a more mainstream alternative than Sanders, who self-identifies as a democratic socialist. In particular, some Democrats are worried about whether Clinton's email controversies could damage her general-election chances.

But a Biden candidacy seems anything but a sure bet.

The Wall Street Journal reported over the weekend that though "signs point to him running," Biden "could still pull back, however, if he concludes he is too shaken by his son's death to mount a campaign. Another consideration for Mr. Biden: the fortunes of front-runner Hillary Clinton."

Political observers are left to wait and speculate:

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RELATED: See photos from the first Democratic presidential debate

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Democratic Debate Oct 13
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Joe Biden speculation is reaching a breaking point
LAS VEGAS, NV - OCTOBER 13: (L-R) Democratic presidential candidates U.S. Sen. Bernie Sanders (I-VT), Hillary Clinton and Martin O'Malley take part in a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. Five Democratic presidential candidates are participating in the party's first presidential debate. (Photo by Joe Raedle/Getty Images)
Martin O'Malley, former governor of Maryland, participates in the first Democratic presidential debate at the Wynn Las Vegas resort and casino in Las Vegas, Nevada, U.S., on Tuesday, Oct. 13, 2015. While tonight's first Democratic presidential debate will probably lack the name-calling and sharp jabs of the Republican face-offs, there's still potential for strong disagreements between the party's leading contenders. Photographer: Josh Haner/Pool via Bloomberg
LAS VEGAS, NV - OCTOBER 13: Democratic presidential candidates (L-R) Hillary Clinton, Martin O'Malley and Lincoln Chafee take the stage for a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. The candidates participated in the party's first presidential debate with Jim Webb and Sen. Bernie Sanders (I-VT). (Photo by Alex Wong/Getty Images)
LAS VEGAS, NV - OCTOBER 13: (L-R) Democratic presidential candidates Jim Webb, Sen. Bernie Sanders (I-VT), Hillary Clinton, Martin O'Malley and Lincoln Chafee take the stage for a Democratic presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. The five candidates are participating in the party's first presidential debate. (Photo by Alex Wong/Getty Images)
LAS VEGAS, NV - OCTOBER 13: Guests including Senate Minority Leader Harry Reid (D-NV) (4th R) attend a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. Five Democratic presidential candidates are participating in the party's first presidential debate. (Photo by Joe Raedle/Getty Images)
LAS VEGAS, NV - OCTOBER 13: Democratic presidential candidate Lincoln Chafee takes part in a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada. Five Democratic presidential candidates are participating in the party's first presidential debate. (Photo by Joe Raedle/Getty Images)
Presidential hopefuls Bernie Sanders and Hillary Clinton appear on screens in the press room as journalists cover the Democratic presidential debate in Las Vegas, Nevada on October 13, 2015. Democratic presidential frontrunner Hillary Clinton will finally square off with top rival Bernie Sanders in the party's first debate of the 2016 campaign as she seeks to prove she is the candidate to beat. AFP PHOTO/ FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
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More from Business Insider:
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