Intelligent design (sometimes abbreviated as ID) is a variety of creationism that relies on the argument from design. Proponents of the Intelligent Design movement claim that, unlike creationism, they are motivated by science and not religion. This is a claim that echoes that of ID's intellectual precursor, scientific creationism. Like scientific creationism, ID's claim to be scientific is suspect, since the ID movement has produced no original research. ID proponents tend to spend their time engaging in public relations and politics rather than doing science. Virtually all of them are Protestant Christians, usually of a fundamentalist slant (officially, the Catholic Church endorses the theory of evolution).