Japan's Chief Cabinet Secretary Yoshihide Suga has declined to comment on US President Donald Trump's official launch of his re-election campaign.
Suga told reporters on Wednesday that he will refrain from speaking about US domestic affairs.
He said the Japan-US alliance has become stronger than ever, based on mutual trust between the US president and Prime Minister Shinzo Abe.
He said receiving Trump as Japan's first state guest in its Reiwa era is a testimony to that. He added that the government will continue to closely coordinate views with Washington and work to further strengthen the bilateral alliance.