There was no sign that Mr. Johnson, who keeps afirm control on the party despite from havingresigned leadership of it, would intervenepersonally.

译文：约翰逊先生虽然已辞去领导职务，但一直控制着政党，然而并没有迹象表明他会亲自干预政权。

点睛：that引导的足sign的同位语从句，用于具体说明sign。who引导的是以Mr. Johnson为先行词的定语从句，其中despite from...为该从句的状语。

考点归纳：同位语从句的常见用法如下：

*直接跟在名词之后，由that引导，that不可省略。

There is no doubt that you are a scholar.

毫无疑问，你是位学者。

*有时不直接跟在名词之后。

The news got about that you had won a car in the lottery.

有消息传开说你彩票中奖得了一辆汽车.

*可由连接代词或连接副词引导。

You have no idea how worried your parents were.

你不知道你父母有多担心。