Leadership credibility and support for US foreign policy: Experimental evidence from Japan

Does an internationally unpopular president reduce support for US foreign policy? This article examines how President Trump’s endorsement influences foreign policy preferences abroad. A nationally-representative survey experiment is conducted on Japanese attitudes concerning the government’s response to the recent North Korean missile launches. It is found that leadership credibility has a significant impact on the public. Japanese citizens are less likely to support an aggressive response to North Korea when it is endorsed by President Trump. The effect of leadership credibility, however, may not be entirely distinct from general anti-American sentiments. These results indicate that, even in high politics related to national security, Trump’s lack of credibility abroad hinders allies’ ability to cooperate with the USA by eroding domestic support, but it is difficult to separate the Trump effect from broader attitudes toward the USA