Plenty, and those that aren't working that angle have another.
This is what Lindsay Graham is terrified of, why he does not want witnesses.
imho, Mulvaney, previously, put his foot in his mouth and not sure where Bolton will come down and not sure good idea for Atty for Pres to have to testify. Maybe Graham just wants to get this over with asap and prevent devious Dems from more showboating. Just hope GOP has plan to thwart Dems from impeachment 2...and 3, etc. Sickening. Enough!