What to Look for in the Watchdog Report on the Russia Investigation

Mr. Horowitz is also expected to say that, as part of one of the renewals of the wiretap, Kevin Clinesmith, a low-level F.B.I. lawyer working on the case, altered an email from another agency that he sent to a colleague who then signed an affidavit attesting to the accuracy of a packet of information, including that email. Mr. Horowitz has made a criminal referral about Mr. Clinesmith for possibly making a false statement that misled his colleague.

The report is expected to absolve them of taking investigative action out of bias against Mr. Trump.

Mr. Trump and his allies have demonized a group of top F.B.I. officials who oversaw the opening and early stages of the Trump-Russia investigation, portraying them as a cabal who launched a witch hunt in a politicized coup attempt. These include the former director, James B. Comey; the former deputy and acting director, Andrew G. McCabe; Peter Strzok, a former top counterintelligence agent; Lisa Page, a former F.B.I. lawyer who worked on the case; and James A. Baker, the former general counsel.

During an earlier examination into the handling of investigations into Mrs. Clinton’s personal email server, Mr. Horowitz uncovered the fact that Mr. Strzok and Ms. Page had sent text messages to each other expressing animus toward Mr. Trump while working on the Russia case. He also found messages by Mr. Clinesmith indicating that he did not like Mr. Trump or his policies. The findings led Mr. Mueller to remove Mr. Strzok and Mr. Clinesmith from the special counsel team.

But as he also did in his report on the Clinton email investigation, Mr. Horowitz is expected to say that, while these text messages demonstrated bad judgment and cast a cloud over the bureau, he found no evidence that any of the actions they took with the investigation stemmed from their personal political views, people familiar with the draft said.

Separately, Mr. Trump’s allies have vilified a senior Justice Department expert in Russian organized crime, Bruce G. Ohr, who knew and met with Mr. Steele even after the F.B.I. had officially severed its relationship with Mr. Steele for speaking to the press about his dossier. Mr. Ohr’s wife, Nellie, was a researcher at Fusion GPS, the opposition research firm that hired Mr. Steele.

The report is expected to criticize Mr. Ohr for failing to keep his supervisors in the loop about his continued meetings with Mr. Steele, but it is not expected to say that Mr. Ohr was part of any attempted coup.