Mr. Katzenberg said the campaign’s fund-raising would rely equally on Mr. Biden’s popularity among Democratic donors and a liberal fear that Mr. Trump could return to the White House.
“The difference between passion and anxiety is not discernible,” Mr. Katzenberg said. “Whether somebody is doing this out of their passion and belief in the president — fantastic. If they’re doing it out of anxiety of what the alternative is — fantastic. The color of the green is the same.”
Last week, Reid Hoffman, the billionaire LinkedIn co-founder and one of the party’s most important financiers, organized a donor briefing at the Rosewood hotel in San Francisco, pulling in several dozen donors for the pro-Biden super PAC American Bridge, according to two attendees.
Notably, the early television ads that the Biden campaign has announced were paid for by the Democratic National Committee, which had $28.7 million on hand at the beginning of April. For now, senior Biden officials are planning to push as many costs as they legally can to the party, which can raise far larger sums. The campaign does not have a physical headquarters yet; for now, aides are working out of the D.N.C.’s building in Washington.
Mr. Biden’s New York trip will include two small fund-raisers that are being pulled together relatively hastily. Tony James, a former top executive at the private equity giant Blackstone, is hosting one event, where tickets begin at $25,000, according to invitations. Donors were told that Pete Buttigieg, the transportation secretary, would also attend, and the goal for the two events was to bring in $3 million, according to a person briefed on the plans.
For now, the White House seems happy to cede the national stage to the Republican primary race. Mr. Biden’s first television interview after his announcement, on MSNBC, was buried at 10 p.m. last Friday.
“It would be unfortunate if they let the Republican nominee govern the conversation on a day-to-day basis,” said Faiz Shakir, the campaign manager for Mr. Sanders’s 2020 bid. “It feels like too much of a wild card to sit back. You’ve got to figure out a way to excite and energize people about your own conversation and to drive Donald Trump into that one.”
