The Ukraine affair has a fast-moving parallel criminal track, and it has already established direct connections to Trump, Rudy, Nunes - thus everyone. cbsnews.com/news/giuliani-…
This new information requires Nunes to step down from the Intelligence Committee until his name is cleared of criminal wrongdoing.
House needs to look at all this new info closely, and decide whether it means it needs to slow down Impeachment to allow these new developments to play out a bit.
If he isn't already, Nunes will be soon under criminal investigation, and must step back from the Intelligence Committee immediately.