He became aconfidante of Churchill, and thus was privy to some of his thinking.
这句可以改成如此吗？
He became aconfidante of Churchill, and was thus privy to some of his thinking.
可以，thus 是一个连接副词，在 was 之前或之后均可。
He became a confidante of Churchill, and thus was privy to some of his thinking.=
He became a confidante of Churchill, and was thus privy to some of his thinking.
