O'Rourke brought in 218,000 contributions with teachers being the top contributor, at an average of $520,000 per day.
The biggest burst for Mr. O'Rourke came in the first 24 hours of his campaign, where he pulled in $6.1 million.
Candidates vying for the Democratic nomination to be US president began on Monday to disclose how much cash they were able to raise in the first quarter of the year - an early test of their ability to organize and build support.
U.S. Senator Elizabeth Warren announced earlier this year that her campaign would not hold any formal fundraising events and instead rely exclusively on "small-dollar" donations, or contributions collected online. Other Democrats have not yet announced their fundraising totals. Bernie Sanders (I-VT) and Kamala Harris (D-CA), who raised $18.2 million and $12 million respectively for the race.
The fundraising speed outpaced Sanders' first presidential bid in 2016, when he raised 15.2 million dollars in the first two months of his campaign.
Not all the Democratic presidential contenders have released their first quarter numbers.
Asked whether he would sign into law as president a bill sponsored by Rep. Sheila Jackson Lee of Texas that would create a commission to consider reparations, O'Rourke replied with an emphatic, "Yes".
Democratic presidential candidate Beto O'Rourke speaks during the National Action Network Convention in NY on Wednesday.
"I had a chance to speak with and just listen to and learn from Brian Stevenson in Montgomery, Alabama and learn from his work on working with the community to build a memorial to justice and to peace and he said 'foundational to reparations is the word fix".
He had previously hinted he would not support reparations.
While campaigning in New Hampshire several days later he said, "I don't believe... that [reparations] should be the primary or initial focus of the conversation".
This solidifies Sanders' position as a frontrunner in the Democrat's presidential race according to Tillett.
"This campaign will have the resources and the volunteer, grassroots strength to compete in every single state in the primary process", Jeff Weaver, who led Sanders' 2016 campaign and now serves as a senior adviser to his 2020 bid, told reporters on a press call Tuesday.
Sharpton's question came after O'Rourke addressed hundreds of NAN attendees in New York City.
After his talk to activists, O'Rourke was asked about the allegations of inappropriate touching against former Vice President Joe Biden.
'Ultimately, of course this is a decision for him to make. "Huge, you would say".