My understanding from reading this article, is that the tip came fairly recently via a whistle-blower after the FBI had already been investigating this for months.
My understanding is the tip came Two Weeks BEFORE the election.
Plenty of time to Put Betrayus under oath to determine if the affair was true
And if National Security was compromised. It is not Cantors responsibility
To determine if the tip was credible or not.
That’s what committees do. The fact he notified the FBI is good.
The fact he did not refer this to his committees is bad.