With the GOP in the minority in the Senate, good luck with that. The Senate won't touch it unntil Holder is impeached. That's why Senator Grassley from Iowa is sitting in on Issa's House hearings.
OK, if he’d be willing to sit in on Issa’s hearings with Sen. Grassley that would be a major indication that he’s taking things seriously.
But a tweet? Gimmee a break.