Despite her successful fundraising efforts and substantially outspending the Trump campaign, Hillary Clinton is looking for more cash -- and she needs it fast.

Hillary campaign manager Robby Mook sent a rather urgent-sounding fundraising letter to donors, saying the campaign's funds are "dipping" and that they need help fast. Maybe that's because she's burning through money like there's no tomorrow. The NY Post summarized Mook's plea: 

“Our poll numbers are holding steady, which is good. We’re growing our field organization, building out neighborhood teams in communities all over the country — which is even better,” Mook wrote.

“But that’s happening at a time when our fundraising levels are, frankly, dipping.”

Mook appears to attribute lower fundraising numbers with overconfidence. “It seems that with our convention in the rearview mirror and pundits constantly saying that ‘momentum’ is on our side, a lot of people believe that we have this locked up and that donations don’t matter anymore.”

“We have to remind ourselves that it’s only August — and that Donald Trump has more than enough time to find his way to a win by November. After all, he’s already raising nearly as much money as we are and may even pull ahead in the weeks to come,” Mook’s email states.

Meanwhile, details of the candidates' fundraising and spending records was just chronicled in USA Today and reveals that Clinton is outspending her rival at record-speed: 

Clinton pulled in more than $52 million directly into her campaign last month and spent more than $38 million, according to her campaign’s filings Saturday with federal election regulators.

Trump raised nearly $36.7 million for his campaign and spent at a far slower pace than Clinton, reporting nearly $18.5 million in expenses in July as Clinton and her allies savaged him on the airwaves.

Hillary Clinton's campaign started August with nearly $58.5 million in available cash while Trump began August with $38.4 million, according to USA Today. The outlet notes, however, that Trump has largely self-funded his own campaign: 

Trump added another $2 million of his own money to the campaign last month, bringing his total contributions to nearly $45 million, FEC records show.

The Clinton camp is also outspending Trump when it comes to advertising: 

On Friday, Trump launched his first commercials of the general-election campaign, spending $4.8 million to run ads into those two states, along with Ohio and North Carolina.

Clinton and her allies, however, have dominated the airwaves since June, pumping more than $100 million into TV ads that promote Clinton and blister Trump as unfit to serve in the White House and out of touch with working Americans.

A sizeable portion of the Trump campaign money is being spent on RNC efforts to turn out the vote in battleground states. USA Today reports that thus far, the RNC has deployed 504 staffers, many of whom are working in swing states like Pennsylvania and Ohio. 

Meanwhile, take a look below at the latest fundraising tally for both campaigns, published via OpenSecrets. It is quite telling. Yes, Hillary has raised more, but nearly 30 percent of her funds comes directly from SuperPACs as opposed to Trump, whose contributions from SuperPACs total a mere 3 percent. In the world of political campaigns this is quite low, and signals he is adhering to his vow to remain an independent operator not beholden to special interests, big-bundlers or other powerful groups. 

Also telling is the fact that despite the Clinton's well-oiled political machine, Hillary is roughly tied with Trump in the current polls.