Picture a small child saying: "Can’t, shan’t, won’t!" They are using modal verbs to show their feelings and attitude to something. Maybe they are refusing to go to bed or eat their peas.
In 2018, as the left was trying to destroy nominee Kavanaugh (now "Kavanaugh" is a verb akin to "Bork") I wondered if they really wanted someone else. Had Kavanaugh dropped out, Trump almost ...