Mr. Biden has expressed concern to these people that he wouldn't be able to raise millions of dollars in online donations immediately the way some other Democratic candidates have, including former Texas Rep. Beto O'Rourke and Vermont Sen.
His April announcement would come just two months before the first scheduled debate among Democrats.
"For New York City Mayor Bill de Blasio, who hasn't yet decided whether he'll run, his statewide net favorability rating is at an all-time low since taking office in 2014", Snow added.
"This is a President who has made no efforts to build his base". Biden has a longer political record than any other potential 2020 candidate and it includes scores of positions that are unpopular with Democratic voters, including some from which he's since sought to distance himself or for which he's apologized.
Chicago financier Louis Susman, among former President Barack Obama's largest campaign fundraisers, told the business outlet he is discussing with "family and friends" about supporting O'Rourke.
He would enter a crowded field of close to 20 presidential candidates that have already declared, or are expected to announce, they will be entering the 2020 race, CNBC reported. Biden has the support of 55 percent of American voters in that hypothetical match-up, compared to 45 percent for Trump. The figure marks a four-point increase from last week, according to the outlet.
Both polls show O'Rourke's support at 11 percent.
Biden, the Journal reported, wants to raise several million dollars for his campaign but is concerned that he cannot garner the kind of online support given to candidates such as Beto O'Rourke and Bernie Sanders.