Former President Donald Trump’s legal team is threatening litigation against the nonprofit investigative outlet ProPublica, for a story published at the start of this month alleging his business and campaign are paying “significant financial benefits” to witnesses in cases against him. ProPublica revealed the threat against them in a post on X Wednesday. “Trump’s attorney sent ProPublica a cease-and-desist letter demanding this article not be published. It warned that if the outlet and its reporters ‘continue their reckless campaign of defamation, President Trump will evaluate all legal remedi…