Question:
Not knowing these rules can cost you a bet on the low end; repeated violations can lead to expulsion from the casino.

Does it follow that "There is no need to know the rules if you don't think you are violating any."?
Answer:
no

Question:
Who do they think we are?

Does it follow that "They know we are knights."?
Answer:
no

Question:
Mr. Brown?

Does it follow that "Mr. Brown, you're looking pale?"?
Answer:
it is not possible to tell

Question:
But in an era when a politician's ability to communicate trumps anything else and the balance of Republican power has shifted west, the preppy, Anglican ethos that defined the old man is suspect.

Does it follow that "In this era, a politician who can communicate means more than one who cannot. "?
Answer:
yes