During the first quarter of the year, Trump spent about $834,000 on legal expenses - down from the $1.1 million he spent in each of the previous two quarters, according to disclosures filed with Federal Election Commission.
About $125,000 was spent by the campaign at Trump-owned businesses, hotels and restaurants.
Trump spent £3.9 million in the very first quarter.
Daniels alleges she had an affair with Trump and was paid "hush money" by his personal lawyer to keep quiet about the relationship.
The Trump campaign paid another $13,500 to McDermott Will & Emery, a firm that represents Cohen in the ongoing Russian Federation investigations and a newly revealed criminal inquiry.
Trump campaign manager Brad Parscale's consulting firm was the largest single recipient of campaign cash, receiving $1.7 million for digital and advertising services. That was a sharp drop from the previous quarter, when the campaign paid the firm almost $215,000.
Trump has opted - unlike presidents before him - to begin actively fundraising in the early part of his first term.
Prosecutors said in a Friday court hearing that Cohen has been the target of a months-long federal investigation in NY, separate from Special Counsel Robert Mueller's probe of Russian interference in the USA elections.
The campaign's filings list the spending's objective with the firms as legal consulting, without greater specificity.
He continues to energize small-dollar donors, FEC filings show.
The Trump committee also paid almost $1.7 million for digital consulting and online advertising services to Parscale Strategy LLC, the firm of Brad Parscale, Trump's 2020 campaign manager.
Trump's campaign also paid $93,181 to Harder LLP, which specializes in entertainment law and reputation protection.
In addition to payments from the campaign, Parscale's business also received $66,647 from the two fundraising committees and another $46,808 in consulting fees from the main super PAC supporting Trump, America First Action.
Johnny McEntee, Trump's former personal assistant who was forced out when he couldn't be get security clearance, was hired by the campaign in March. McEntee was sacked from the White House amid a Department of Homeland Security investigation into possible financial crimes, a source told CNN after he was dismissed.