U.S. President Donald Trump on Monday ordered the deployment of National Guard troops in Washington to fight crimes, a move ...

SAO PAULO, Aug. 15 (Xinhua) -- Brazilian Health Minister Alexandre Padilha on Friday called the U.S. government's decision to revoke tourist visas for his wife and 10-year-old daughter "cowardly," ...

传统上，政策影响力是通过所谓的“旋转门”机制实现的。专家们在智库、政府或军队职位之间循环流动，将他们的思想、研究成果和人际网络带入政府，从而影响政策制定和联邦招标。这个过程是阶段性的、依赖于个体的。