It does not take a political genius to understand how big a problem this is for Sessions, Trump and congressional Republicans more broadly. (Sessions's response — I talked to a lot people! — isn't going to cut it.)
Before this report, most congressional Republicans were resistant to the idea of appointing a special prosecutor to investigate the contacts between Russia and Trump campaign officials and surrogates — insisting that the ongoing FBI investigation and congressional committees looking into the issue were more than enough.
That's going to become an untenable position for Republicans — starting with House Speaker Paul D. Ryan (R-Wis.) and Senate Majority Leader Mitch McConnell (R-Ky.) — in light of this new information about Sessions. Not only is there a very serious question about whether Sessions misled — purposely or accidentally — his colleagues while under oath, but this is also the latest incident involving unanswered questions about the ties among Trump, his top advisers and Russia.
Former national security adviser Michael Flynn lost his job last month after lying to Vice President Pence — and lots of other people — about the nature of his conversations with Kislyak. Trump has repeatedly refused to condemn Russian President Vladimir Putin while insisting that stories about his ties to Russia are “fake news.”
In short: Where there's smoke and smoke and smoke and smoke and smoke, most reasonable people will assume there is fire — or that there should be an independent investigation to determine whether there is fire. Arguing that “there's nothing to see here” is simply not a tenable position for Republicans at this point.
I suspect lots of Republicans will follow Graham's lead over the next 24 or 48 hours. The details here — particularly given the Flynn resignation — almost certainly will force an act of political triage from GOPers. They need to find a way to wall themselves off from what, with each passing day, is becoming more and more toxic. Otherwise, the spillage could leak all over them.