Spencer Zwick, the much-praised Republican finance operative who led Romney’s efforts, said raising $500 million was doable. But Zwick, like several other Republican fund-raisers here, asserted that Trump needed to significantly quicken his fund-raising clip before the convention, after which he will have little time for fund-raising…

And his campaign does not seem urgent, although he would need to raise more than $80 million a month to meet the $500 million mark. After missing out on the windfall of low-dollar cash that could’ve come Trump’s way after each of his primary victories, his campaign is not set to launch a low-dollar digital fund-raising operation until around the Republican convention in mid-July, according to a person with knowledge of the plan…

Meanwhile, the Trump high-dollar fund-raising operation is showing signs of duress, people here say. A joint fund-raising agreement was hatched last month to split proceeds between the RNC and the Trump campaign. And while the first joint fund-raisers have gone well, RNC chair Reince Priebus has phoned some associates expressing frustration that Trump wants to direct dollars to his own ambitious plans, according to a person who has spoken directly with Priebus, which includes quixotic bids to win deep blue states like California and New York.