According to a Kaiser Family Foundation study, about ________ of Medicare spending is for expenses other than patient care, while some private insurance companies spend about ________ on similar nonpatient expenses.

For over forty years, the post–World War II international system was characterized as ________.

a. multipolar b. bipolar c. hegemonic d. unipolar

When the Senate votes to invoke cloture, it

A) limits the amount of time that may be spent debating a bill. B) means a bill must either pass or fail without any amendments. C) sends a bill back to its originating committee for amendment. D) forwards a bill to a conference committee so that differences between the House and Senate versions may be worked out. E) will result in a bill's failure.