His tweeting is annoying, but it can be an effective defense. He has 43.2 million Twitter followers. The New York Times has 3.1 million subscribers.
I entered Hillary Clinton's twitter account into the search box and it shows that 11.87 million of her 20.1 million followers are fake.
Bernie sanders is even worse. 5.24 million of his 8.54 million followers are considered fake.
1.5 million of Elizabeth Warren's 3.62 million followers are fake.
It really makes me wonder just what kind of weather vane Twitter really is especially when you consider that those millions of fake accounts include millions of "robotic" accounts that are programmed to do things like automatically like posts from specified twitter accounts.