Sorry, I don't know what is the domino theory of politics. But, I personally like the tweets because they give me unfiltered information from the president. Previous politicians have been slick and polished in their speeches, but they weren't truthful. They gave the people what they wanted to hear, but they didn't follow through. Now, some people don't like Trump Tweets. How is that different than other presidents using outdated technology like radio and TV.
Maybe if the MSM can go back to reporting the news, Trump could dispense with the Tweets, but until then, Tweet Tweet.
del if u wish