The campaign of Donald J. Trump, whose grass-roots organizing in Florida is far behind that of conventional presidential nominees, promised $1.9 million for a ground game in the state but has yet to come through with the money, less than five weeks before early voting begins.

Warning that there is “no time to waste,” Susan Wiles, Mr. Trump’s Florida state director, wrote in an internal email on Sunday that the campaign’s New York leaders gave a “green light” to begin spending a seven-figure sum for a field program to get out the vote. On Monday, Ms. Wiles said the money was being delayed.

Ms. Wiles wrote the internal email to a senior aide Sunday morning while awaiting a phone call from David Bossie, Mr. Trump’s deputy campaign manager, and Stephen K. Bannon, the chief executive.

“I am waiting for a Bossie/Bannon call so am sending an email rather than talking but Bossie directed to begin to spend on a field program…green light to go ahead,” Ms. Wiles wrote. “We don’t know if we’ll get the entire $1.9 million (think we’ll get it all or close) but we are assured a good slug so we need to get going. No time to waste.”