Characteristics of american population?

Often referred to as a “nation of immigrants,” the United States has a resident population that is one-quarter foreign born or native born with at least one foreign-born parent. While most residents have immigration in their family histories, some 235 million, or 75 percent, must look back to the time of their grandparents’ generation or before in order to access their
family’s immigration experience.

The president's only official legislative duty is to sign or veto bills.