Dear Marshall, the quote from Johnson is currently applied to politics, particularly those who are "nuisance value" to the party or cabinet. The part was in context to Wagh as the party doesn't want him to leave probably because he has threatened to join another group or party or may join NCP. The line "Churchill defines it well." following the quote has been edited out by the editors. Churchill, as you know, is also known for his troublesome nature and jumping into one party or another or leading breakaway groups. I hope my answer satisfies you.
Eugene
