Conservative political commentator Erick Erickson has chimed in with his take on Trump's classified disclosures to Russia, saying that he knows one of the sources personally — noting they're solidly pro-Trump — and approves of their leak as POTUS "will not take any internal criticism," per his blog The Resurgent.

His question: "If the President, through inexperience and ignorance, is jeopardizing our national security and will not take advice or corrective action, what other means are available to get the President to listen and recognize the error of his ways?"

Why it matters: This type of scandal — one that directly jeopardizes national security — is one that might begin to peel away even the staunchest conservatives from Trump's base of support.