Judicial review is an example of ______.

Assume that three presidential candidates all carry several states, winning some electoral votes. Candidate A wins 220 electoral votes; Candidate B wins 178 electoral votes; Candidate C wins 140. What is the outcome of the election?

a. Candidate A is elected president. b. Candidates A and B are in a runoff. c. The House and Senate would select either Candidate A or Candidate B as president. d. The House would choose the president from among the top three finishers. e. All three candidates would compete in a runoff.

To estimate a causal effect of X on Y, researchers sometimes look for a(n) ____ variable that produces variation in X but does not directly influence Y.

Fill in the blank(s) with the appropriate word(s).