DOCso says Maggie Gallagher, of our sister organization, the National Organization for Marriage, over at NRO. Here is one of my favorite reasons:

4.  Progressives are often wrong about the future.

Here’s my personal litany: Progressives told me abortion would be a dead issue by today, because young people in 1975 were so pro-choice. They told me there would be no more homemakers at all by the year 2000, because of the attitudes and values of young women in 1975. Some even told me the Soviet Union was the wave of the future. I mean, really, fool me once shame on you. Fool me over and over again . . . I must be a Republican!

Read it all here.