THE OTHER SIDE ISN’T HAPPY EITHER…. One need not look too hard to find someone on the left who’s upset about Rick Warren delivering the invocation at Barack Obama’s inauguration. But as it happens, liberals aren’t the only one who are upset by the news.

In an interesting twist, plenty of conservatives are mad, not at Obama for inviting Warren, but at Warren for accepting the invitation.

David Brody, a correspondent for TV preacher Pat Robertson’s Christian Broadcasting Network, reported today that he’s been “flooded with emails and most of them absolutely rip Pastor Warren for doing this.”

Brody doesn’t seem to share their concerns — he asks, “Why can’t a pro-life pastor pray for a pro-choice candidate?” — but he republished a variety of the angry emails. This one stood out:

“Unless Rick Warren has changed, he is very disappointing in the pro-life cause. Just ask pro-life leaders their opinion. He doesn’t like to deal with it at his church. It just seems funny that he is known as ‘pro-life’ when he largely ignores the subject and teaches others to do the same. I fear God for these ‘men of God’. We have lost 50 million babies, and most won’t say a word. Reminds me of Nazi Germany or our slavery days. Very few spoke out. It was more comfortable to keep quiet.”

Here’s another:

“I have had about all I can stand of Rick Warren’s double standards. WHOSE side is he really on anyway? I’m beginning to think all he cares about are his questionable political connections. When I saw your article announcing his participation in “that one’s” so called inauguration ceremony it absolutely sickened me. It isn’t enough Obama is so full of himself that he “thinks” he’s God. – Apparently now Rick Warren believes he is too. This is a complete mockery of all things sacred.”

We can now expect the inevitable onslaught of reports indicating that “extremists on both sides” have expressed concerns about Warren’s role at the inauguration.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.