Generally I don't like manipulating people. But I am knowledgeable about how it's done. And I guess if the opposition is going to do it, we are going to have to use some strategies.
In psychology they are called "persuasive techniques". But I've always considered them manipulative.
I think some knowledge of this might be of aid to you as well. https://en.wikipedia.org/wiki/Elaboration_likelihood_model
Most leftist like to think that the left are smart and intelligent but it's not true. A large chunk of liberals/leftist are just as hindered in their critical thinking as rights. (Though there are more on the right to be sure).
So these people are more easily manipulated by surface shallow arguments.
Like Gavin newsome being attractive and getting in laughs at trump.
This is not something that should matter for elections but it does.
Way too many people are won over by this kind of thing but . We can still combat it. We just have to appeal to both types of people.