Subpoena Power

So, Lindsey Graham (R-SC) has said he's challenging the subpoena to testify in Georgia about the call he mad to Brad Raffensberger and that he won't cooperate. Putting aside that he doesn't appear to have a leg to stand on to quash the subpoena, I almost hope he doesn't testify (or takes the Fifth). After all, Raffensberger has already testified under oath for five hours about the call. So, if Graham doesn't testify, then the Republican Secretary of State's sworn testimony is the only version on the record.