Prime Minister Sanae Takaichi is attempting to raise Japan's profile at a time when China's clout is rising and doubts about the United States are spreading.
The attack was the second in two days, and the latest in an ongoing campaign against people the United States says are engaged in drug smuggling at sea.
Primary challengers backed by Trump will beat at least five of the seven Indiana state senators who defied him last year on redistricting, the AP projects.
Authorities said search and rescue at a fireworks plant in a central Chinese province has largely been completed, but verification of the casualties and identification of the victims are still underway.