I've long been a fan of T.S. Eliot's poem The Love Song of J. Alfred Prufrock. However, it seems to me that his use of "you and I" in the opening lines is incorrect.
Let us go then, you and I, when the evening is spread out against the sky
My reasoning is that "you and I" replaces "us" and you wouldn't say "Let I go then", so it should be Let us go then, you and me.
Is this Eliot taking poetic license or am I just wrong?