UPDATED - the original was WAY too long and rambling.
Half the conservative world is up in arms over Harriet. "How do we know she's a real conservative? How do we know she's a strict constructionist?" they cry.
It's blindingly obvious to me - she's an evangelical Christian.
Harriet Miers has attended and been active in an Evangelical church for decades. Social moderate-conservatism is in the water, the air. (You'll also find some extremely strong social conservatives, but fewer in Evangelical than in Fundamentalist churches.)
Many of Miers's critics grudgingly accept that she's probably a social conservative. But they're unsure about her stance on the interpretation of the Constitution. Again, her faith-based worldview informs this.
Evangelicals study the Bible, trying to discern the writer's original intent. "What's the 'therefore' there for?" There are wide-ranging arguments over how to interpret many passages (most a result of different ways to translate the original languages and discussions over cultural and historical context), but the bottom line is, "What does the Bible SAY?" We let the text speak for itself, and take the most plain meaning possible.
I'm not worried about Harriet Miers rewriting the Constitution.
Note: I wrote this BEFORE I saw the post on Captain's Quarters or the WSJ article talking about this very issue. Great minds think alike, eh? :-)