Which president is associated with the term ‘bully-pulpit'?

Which of the following activities would be a good example of congressional casework?

a. analysis of an incumbent's policy positions prior to a debate b. analysis of police force effectiveness c. analysis of water quality within a district d. assistance to a constituent in obtaining a Social Security check

A point that lies outside of any win set:

a. Fails to be an improvement over the status quo when there is sufficient power to form a winning coalition b. Is always the ideal point of the median voter c. Is the status quo d. Is the ideal point of the most radical stakeholder