it's the waning of that civic vision,

那就是福纳在著作中提到的
as Foner calls it in your book,

公民视域
of the Radical Republicans' ideology

激进共和党的理念下的公民视域
And what was that vision?

那个视域是什么呢
Foner lays it all out for you

福纳已为你们一一列出
He said the Radical republicans had an essential ideological vision

他说激进共和党有一个关键的理念视域
On the one hand it was Unionism

其中一方面是由于联邦主义
On the other hand it was rooted, to some extent,

而另一方面在某种程度上
in trying to create racial equality,

这是为了种族的平等
because the war had necessitated,

因为战已至此
it had forced it on them

他们只能如此
They, therefore, were believers in this idea

因此他们相信