Antifederalists were sharply critical of the structure of the Senate, the executive, and the federal judiciary under the Constitution because they

Because they were worried that the undemocratic institutions would in turn lead those in power to tyrannize the public

Explanation:

Antifederalists were sharply critical of the structure of the Senate, the executive, including that of the federal judiciary under the Constitution because they worried these undemocratic institutions would lead those in power to tyrannize the public because undemocratic institutions is the institutions that is been controlled by one person or a small number of people, rather than be controlled by all the people involve, hence leading those in power to tyrannize the public by exercising absolute power or control by either cruelly or oppressively.

barack obama he actually listens