https://www.congress.gov/congressional-record/volume-165/senate-section/page/S1885
Graham wanted to add a proviso recommending Special Counsel …
"if you wonder about how Republicans vote in the House–that this resolution be modified calling for the Attorney General to appoint a special counsel to investigate Department of Justice misconduct in the handling of the Clinton email investigation and in the handling of the FISA warrant process as it relates to warrants obtained on Carter Page and to publicly release the results of those investigations–be agreed to consistent with law. I ask that the resolution to be modified in accordance with this."
Schumer would not agree to this, so Graham objected to taking up the "make Mueller report public" non-binding resolution