Normally I agree with Rush, however this time I don't. If the public lets this drop it will become the norm on the floor. I think Rush is saying leave it alone simply because he believes the Republicans don't have the guts to do anything. If you don't expect results you can't be disappointed. He's right without a lot of public outcry the Republicans will not do anything.
You are mischaracterizing what Rush (and I) are saying. He is NOT advocating that "the public let this drop." On the contrary, he is saying that this outburst perfectly reflects what the Democrats really believe. And he is saying that we (meaning all right-thinking Americans) should point this out again and again, repeatedly, until they cry "Uncle!" and then some. That hardly sounds like "letting this drop" to me.