“So what’s that going to prove?”
There are a great many people who want to see Congress exercise some of the authority the citizens of this nation delegated to them for the purpose of holding government officials accountable for their misconduct. So, if nothing else this Congress can recover at least some tatters of credibility, whereas a failure to use the power to hold a government official in contempt of Congress will only further shame the members of Congress.
Smoke and mirrors.......