Trump also alluded to the role the US had played in the targeted assassinations of the Iranian leadership. “They had leaders. They’re gone. And they had another set of leaders. They’re gone. Now they have another set of leaders. They may be gone,” he said.
The US president noted, “I may be gone, too, because I’m their number one target.” “That’s the way they act,” he added, claiming that he is doing “what’s right for the country”.
So “that’s the way they act”, after describing himself acting that way.