They knew it was politically motivated but are pretending otherwise
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[Steele], who now owns a foreign business/financial intelligence firm, was approached by an identified U.S. person, who indicated to [Steele] that a U.S.-based law firm had hired the identified U.S. person to conduct research regarding Candidate #l's ties to Russia (the identified U.S. person and [Steele] have a long-standing business relationship). The identified U.S. person hired [Steele] to conduct this research. The identified U.S. person never advised [Steele] as to the motivation behind the research into Candidate #l's ties to Russia. The FBI speculates that the identified U.S. person was likely looking for information that could be used to discredit Candidate # 1's campaign.