Pence was told Flynn didn't discuss sanctions, aides say
Even if Pence was not aware that sanctions were discussed between Flynn and the Russian ambassador when he made his comments, the episode could leave him with diminished standing, concerning those around him. For the national security adviser to mislead the Vice President on such a sensitive issue with impunity would seem to send a signal about Pence's standing in the West Wing, a Pence adviser said.
https://www.politico.com/story/2017/02/michael-flynn-russia-sanctions-mike-pence-234899