Please correct me if I'm wrong but I remember Graham to be not a fan of President Trump. I wonder if such opinion was swayed by the fake Russian dossier narrative?

LINDSEY GRAHAM: DOJ USED ANTI-TRUMP DOSSIER IN COURT

"I just saw Lindsey Graham on one of the Fox News talk shows. He told the host, Brian Kilmeade, that the infamous anti-Trump dossier was used in court by the Department of Justice. I take it Graham means that the dossier, or information it contains, was used by the DOJ in the FISA court to gain approval for surveillance of Team Trump.

We have suspected that this was the case. Now Graham apparently has seen evidence that confirms our suspicion.

Graham made his statement in the context of calling for a special counsel to investigate matters relating to the dossier, an issue that, he noted, falls outside the purview of Robert Mueller. Graham said that it has been very difficult to obtain information from the Justice Department, but that recently he discovered information that “bothers him a lot” and convinces him of the need for the dossier to be investigated by someone outside of the DOJ. ...."

http://www.powerlineblog.com/archives/2017/12/lindsey-graham-doj-used-anti-trump-dossier-in-court.php