The FBI had previously confirmed the existence of the drafted statement.
Speaking at the National September 11 Memorial and Museum, Wray also made comments about the Las Vegas mass shooting.
Trump tweeted in July: “Problem is that the acting head of the FBI & the person in charge of the Hillary investigation, Andrew McCabe, got $700,000 from H for wife!”
The favorable recommendation was expected as more than half of committee members had publicly expressed support for Wray.
The website for Columbia Law School professor Daniel Richman says he “is currently an adviser to FBI Director James B. Comey.”
The former FBI director will speak about his interactions with Trump, including how the president demanded loyalty and made other requests.
The Senate Intelligence Committee published the former FBI director’s opening statement a day before he is scheduled to testify.
The ads, which echo Trump’s criticism of the sacked FBI director, come from one of Donald Trump’s biggest donors during the election.
Comey is to testify Thursday before the Senate Intelligence Committee, which is investigating alleged links between Donald Trump's team and Russia.
To fill appointments, Trump keeps turning to the law firm Kasowitz, Benson, Torres and Friedman, which has represented him for years.
"It's a grotesque abuse of power by the President of the United States," said the CNN legal commentator.
Article by FBI director James Comey appears to brand Poland an accomplice of Nazi Germany, prompting an outcry.