President Reagan's Popularity Declined and His Authority Over Foreign Affairs

President Reagan's popularity declined and his authority over foreign affairs was diminished after 1986 largely as a result of

A) the disclosure of the administration's illegal diversion of money from a secret arms sale to Iran to fund the contras in Nicaragua.
B) Supreme Court decisions that halted his efforts to impound funds approved by Congress for the expansion of social programs.
C) mounting ridicule of the Strategic Defense Initiative that undermined public faith in the president's ability to make rational decisions.
D) Mikhail Gorbachev's clear superiority as a negotiator.