Bernie Sanders, I-Vt., has always been criticized for alleged corrupt practices, including backing a real estate deal in El Paso, Texas, proposed by his wealthy father-in-law.
According to a January 2019 Morning Consult poll, Sanders ranked as the most popular senator in America for the 11th time in a row. It did not say how much of its overall $9.4 million haul came from those small-dollar donations, but said the average contribution it received in the first quarter of 2019 was $43. Roughly 525,000 individual donors have contributed to the campaign.
The announcement came soon after Sunday's quarterly reporting deadline to the Federal Election Commission.
Sen. Kamala Harris (D-Calif.) has raised $12 million from 218,000 donors.
Speaking to Politico for an article published Thursday, the Labour Party's Shadow Justice Secretary Richard Burgon said Sanders, an independent from Vermont who is running for the Democratic Party's nomination to challenge President Donald Trump in 2020, is "very exciting as part of an global movement against neoliberal economic inequality".
While Sanders was able to raise $5.9 million within the first 24 hours of his campaign, when O'Rourke announced on March 14, he topped Sanders by bringing in $6.1 million in a single day.
Among young voters, Sanders, who unsuccessfully challenged Hillary Clinton for the Democratic party's nomination in 2016, appears to be even more popular, however.
Hundreds gather near White House to demand Mueller report release
Mr Nadler, a Democrat, called on Mr Barr to immediately release summaries of the document prepared by Mr Mueller's team. The White House has also not received a preview copy of the report.
O'Rourke's campaign said it relied heavily on small donors and that 98 percent of contributions were below $200.
Mr Buttigieg said he has nearly 160,000 unique donors, a mark that meets the new grassroots fundraising thresholds that the Democratic National Committee has set for candidates to qualify for the initial summer debates.
Sanders entered the race in February and announced raising $18.2 million in 41 days of campaigning.
New CEO Brian Wancho told the Daily Caller that the 2020 campaign isn't using the company for social media or web services, adding that it was unlikely O'Rourke acted unethically by paying the company.
The campaign said that "a majority" of O'Rourke's presidential donors had not contributed to his campaign a year ago for a Senate seat from Texas in which he came up short against Sen.
With such a crowded field - more than 15 Democrats have announced they are running - fundraising abilities have become an early way to prove to donors and potential supporters that a candidate is viable.