(CNN) Michael D. Cohen, President Trump's longtime personal lawyer, steered a client to Stormy Daniels' then-attorney last fall, a year after the two men negotiated a secret $130,000 deal silencing the porn star about an alleged sexual encounter with Trump, Daniels' attorney confirmed to CNN.

Keith M. Davidson said in a statement provided to CNN that Cohen gave his name to entertainment executive and Trump associate Chuck LaBella, who was being written about on Twitter by actor Tom Arnold.

The referral is potentially significant amid allegations of coziness between Davidson and Cohen contained in a lawsuit filed by another Davidson client, Karen McDougal, who also says she had an affair with Trump. The lawsuit claims that Davidson was part of a "broad effort to silence and intimidate her and others." Davidson disputes that claim.

Arnold accused LaBella, who worked as a producer on NBC's "The Apprentice" and on Trump's Miss USA and Miss Universe pageants, of possessing damning information about the President. Arnold's cryptic tweets did not provide details or evidence to back up his claims.

"Chuck LaBella has all the dirt," Arnold tweeted in October of last year.

Read More