WASHINGTON -- Donald Trump acknowledged Tuesday that he is struggling to rally fellow Republicans as new fundraising reports show him lagging behind Hillary Clinton in campaign cash.

Clinton, meanwhile, said Tuesday that Trump would send the U.S. economy back into recession, warning that his "reckless" approach would hurt workers still trying to recover from the 2008 economic turbulence.

Trump's campaign started June with $1.3 million on hand, compared with Clinton's $42 million. Trump's fundraising numbers were released hours after the presumptive Republican nominee fired campaign manager Corey Lewandowski to reinvigorate his White House bid.

"I'm not looking to spend a billion dollars. I need support from the Republicans," Trump told Fox News. "In some respects, I get more support from the Democrats than the Republicans."

Also Tuesday, Trump sent out his first fundraising email, telling recipients "I need your help" to defeat Clinton. He said he would personally match all donations up to $2 million.

"To date, the campaign's fundraising has been incredible, and we continue to see a tremendous outpouring of support for Mr. Trump and money to the Republican Party," his campaign said in a statement Tuesday.

On television, Trump said the Republican National Committee and its chairman, Reince Priebus, "have been terrific" but that "it would be nice to have full verbal support from people in office."

Trump continues to face criticism from Republican leaders, including House Speaker Paul Ryan and Senate Majority Leader Mitch McConnell. Although both have endorsed him, they have condemned his renewed call to impose a temporary ban on foreign Muslims entering the country.

The fundraising reports show that donors gave Trump's campaign about $3 million in May, the month in which he attained enough delegates to become the party's presumptive nominee. By contrast, Clinton, who spent all of May campaigning against Democratic candidate Bernie Sanders, raised $26 million.

Clinton, now the Democratic presumptive nominee, took in nearly a third of her campaign funds last month through the Hillary Victory Fund, a joint fundraising committee with the Democratic National Committee and 32 state parties.

Meanwhile, Sanders pulled in $15.7 million in May as the political campaign wound up in the final states' primaries. His campaign spent $13 million for the month and entered June with $9.2 million.

Trump said he will not spend as much as Clinton will in the race.

"We're going to be running a little bit different campaign," he told Fox News. "We want to keep it lean. I'm not looking to spend all this money. She's going to spend more than $1 billion."

Trump also suggested that fundraising is less important for him because of the unusual nature of his candidacy.

"Politicians are the only ones who can spend a billion dollars," Trump said in a separate interview on Fox News. "Hillary Clinton will spend a billion dollars of Wall Street money."

On NBC's Today, Trump also said he may have to tap more of his personal funds.

"If it gets to a point, I'll do what I did in the primaries. I spent $55 million in the primaries. I may do it again in the general election, but it would be nice to have some help from the party," he said.

Trump defended his fundraising abilities and said he collected $12 million for the Republican Party's coffers during a series of events over the weekend. Despite those efforts, Trump said, he was not getting more support from his own party.

Of the party, Trump said: "I'd like to see great support. If I don't have great support, I'll go a different route.

"I'm having more difficulty, frankly, with some of the people in the party than I am with some of the Democrats," he said, adding of those in his party: "They don't want to come on. They will probably eventually come on. If they don't, I'll be fine either way."

The new financial reports filed with the Federal Election Commission provide details on his campaign giving about $6 million in campaign money to pay for Trump corporate products and services.

Federal Election Commission reports show that the campaign made about $400,000 in payments to Trump, which means Trump had donated $400,000 in campaign office space and some salaries of company employees who have been working on his presidential bid.

For campaign events, he often uses his own properties. The campaign expenses include a $423,000 May payment to Mar-a-Lago, his private club in Florida. The campaign also paid $26,000 in January to rent a facility at Trump National Doral, his golf course in Miami. He'd held an event in the ballroom there in late October. The campaign spent another $11,000 on Trump's hotel in Chicago.

His campaign headquarters is at Trump Tower in New York. The campaign has paid about $520,000 in rent and utilities to Trump Tower Commercial LLC and to Trump Corp.

The biggest payment to a Trump company was $4.6 million to TAG Air, the holding company of his airplanes.

The $46 million worth of loans Trump made to his campaign can be repaid with donor money. He has said he won't do that.

Clinton criticism

In her address Tuesday at an alternative high school in Columbus, Ohio, Clinton suggested that Trump's ignorance and ego would cause the global economy to tank and would bankrupt Americans and risk the country's future.

"Every day we see how reckless and careless Trump is. He's proud of it," Clinton said. "Well, that's his choice. Except when he's asking to be our president. Then it's our choice."

Her speech included several one-liners, including one about Trump's books.

"He's written a lot of books about business. But they all seem to end at Chapter 11," she said, an allusion to the U.S. bankruptcy code.

Trump responded on Twitter as Clinton delivered her address, writing in one tweet: "How can Hillary run the economy when she can't even send emails without putting entire nation at risk?" He was referring to Clinton using a private email account while she was secretary of state.

Priebus said Clinton was "the last person qualified" to talk about improving the economy, pointing to what he called "eight years of disastrous" policies from President Barack Obama.

Clinton used Trump's own statements to undercut his economic credentials, citing remarks he made that the U.S. could sell off assets and default on its debt, and that wages are too high. She also repeated a comment he made that pregnant employees are an "inconvenience."

She also seized on a report Monday by Moody's Analytics, which found that Trump's plans would lead to a "lengthy recession," costing nearly 3.5 million American jobs. The analysis by Moody's Mark Zandi, a Clinton donor and former economic adviser to Republican U.S. Sen. John McCain's 2008 campaign, predicted that Trump's approach would swell the federal debt as the U.S. economy becomes more isolated by less trade and immigration.

Trump has pointed to trade as a major difference between him and Clinton, saying last week that her support of past trade deals, such as the North American Free Trade Agreement, has cost the country "millions of jobs."

He also has criticized her support of the Trans-Pacific Partnership trade deal while she was Obama's secretary of state as a sellout of U.S. workers. Clinton announced her opposition to that trade deal in October, saying it failed to meet her test of providing good jobs, raising wages and protecting national security.

Brushing his criticism aside, Clinton said there was a difference between "getting tough on trade" and "recklessly starting trade wars." She noted that many of Trump's products are made in countries like China, Mexico, Turkey, India and Slovenia.

Trump changes

Trump decided to fire Lewandowski less than a month before the Republican National Convention. Many in the businessman's party feel that he has squandered the weeks since locking up the number of delegates required to be the party's nominee and has allowed Clinton to gain ground.

Aides say they hope Lewandowski's departure will end the infighting that has plagued the campaign since Trump hired strategist Paul Manafort in March to help secure unbound delegates ahead of the convention. Since then, the campaign's leaders have been jockeying for power, slowing hiring and other decision-making. Manafort has long advocated for a more scripted approach backed by a larger and more professional campaign apparatus. He will be taking full control now.

In a conference call with top aides after Lewandowski was fired, Manafort signaled that a rapid expansion would be coming soon.

"The campaign's going to pick up the speed," senior adviser Barry Bennett said.

But Trump's campaign is understaffed compared with Clinton's. His communications team consists of a single spokesman, and he has about 30 paid staff members deployed in battleground states across the country. Clinton, in contrast, has had a campaign team mobilized for months, backed by millions of dollars in battleground-state television advertising. Trump has not reserved any advertising time.

Veteran GOP fundraiser Fred Malek said he doubted that Lewandowski's departure would have much effect on the campaign's fundraising and that the real change has to come from Trump.

"If it signals a change in his style and approach, it can only be positive. But I feel he needs to do more. And I feel that, no matter what he does on the fundraising front, he's going to be at a huge financial disadvantage," he said, explaining that it typically takes candidates two years to build fundraising operations.

Information for this article was contributed by Jill Colvin, Steve Peoples, Jonathan Lemire, Julie Bykowicz, Ken Thomas, Lisa Lerer, Julie Bykowicz and Chad Day of The Associated Press; by Alan Rappeport of The New York Times; and by Matea Gold and Anu Narayanswamy of The Washington Post.

A Section on 06/22/2016