If you do a Google "News" search on the string "hammer and chisel politics", you'll get one hit: Raines' own piece.
That's a "pundit" for you!
Ditto on a Google Groups search. Twenty-three years' worth of Usenet posts, and the only time the phrase "hammer-and-chisel politics" has ever appeared? In a post to alt.society.liberalism. Made five hours ago. Of Raines' own column.