Exclusive: As Democratic attorneys general target Trump, Republican AGs target themhttp://www.reuters.com/article/us-usa-politics-republican-ags-exclusive-idUSKBN16Z1A5If I had to guess, this is because of 3 reasons:
1. Republicans can dish it out but not take it, choosing to abandon tradition after Democratic AGs start treating the Republican president like Republican AGs treated Obama.
2. The Republican Party probably feels it has so much power now that any agreements that limit that power even slightly should no longer be honored, as in their eyes, it only hinders complete control.
3. Pressure from business interests to unseat Democrats who hurt their bottom lines. After all, in the party of business, whenever possible, business comes first.