Answer:
Capitalism has been criticized for a number of reasons throughout history. Among them are the unreliability and instability of capitalist growth, production of social harms, such as pollution and inhumane treatment of workers, and forms of inequality attributed to capitalism, such as mass income disparity.
By defeating inavaders and crushing internal opposition
So if the vice president (president of the Senate) isn’t present, the president pro tempore (senator who’s been there the longest from the majority party) will take over.