His stuff on embryos is crawling towards a dangerous place:

Those of us who have supported the President, who were non-plussed by the reversal of the Mexico City policy on the grounds that gag rules are difficult to defend in a liberal polity, and have been ambivalent about the nomination of Gov. Kathleen Sebelius, must here draw a line. The President’s decision on stem cells, and the hubristic way it is being defended by his staff, is deeply disturbing. I do not expect to agree with anyone one hundred percent of the time, so I do not feel inclined to abandon my overall support for the administration. But, it is Strike One.