"From blocking Trump ... the American network giants will draw serious conclusions," he wrote.
According to him, "it is already clear how they operate and will operate in the face of a political crisis, including outside the United States."
"Quasi-total dependence on foreign Internet platforms is incompatible with the country's sovereignty," Pushkov added.
Previously, Twitter permanently closed access to Trump's account due to "the risk of further incitement to violence."
Also, the social network suspended the account of Trump's campaign headquarters.
As the US president himself noted, he "predicted that this would happen," and Twitter "goes further and further in prohibiting freedom of speech."