“Identity politics” is redundant. Politics always divides into us & them, and the most effective kind is the establishment making it ubiquitous. (Many white people believe that only others have a race. Karl Marx built an identity politics around the one sociological concept sloppier than Race, and it worked when the State imposed it but not otherwise.)
If you don’t have that kind of control, you try to get the voters to accept that you are on their side in the relevant Us/Them distinctions. (Dolt45 got millions of working-class people to believe that he was on their side against the Big Bosses.) Here is an excellent approach to political persuasion
based on that. One example is the Anheuser-Busch commercial on the Super Bowl. Not only does Trump have Budweiser arrayed against him, but they’re using good tactics.