Link to original article in Real Clear Investigations. Long article, but it provides a detailed timeline of events. It also shows, as we know, that no one on the Left thought Clinton would lose, so their actions leading up to the election were illegal with the assumption they would be the ones in power. So who cares? Who would stop them?
Then something “unexpected” happens. Unexpected being the MSMs favorite word for real-world events impinging on their hermetically sealed bubble. Trump won. Then the Obama admin went into full panic mode realizing their actions would be exposed, so they doubled-down on their illegal actions in a go-for-broke attempted destruction of Trump.
And here we are. With their game in the process of being exposed, the MSM in a last-ditch effort huffs about the Republicans besmirching the sacred FBI.
Brennan and Clapper should not be called to testify before a committee. They both will always lie. They have done it so much that even the article you link about perjury is inconsequential. In a legal trial you might tie them up, but with the leftist media and their relentless affection for lying they are not worth questioning in a committee — they have no shame.