President Donald Trump at an April 5 roundtable on the border at the U.S. Border Patrol station in Calexico, California addressed arriving Central Americans: “Can’t take you anymore. Can’t take you. Our country is full. Our area is full, the sector is full. Can’t take you anymore. I’m sorry.” Two days later he repeated this message in the following April 7 tweet:
- “Mexico must apprehend all illegals and not let them make the long march up to the United States, or we will have no other choice than to Close the Border and/or institute Tariffs. Our Country is FULL” (Emphasis added.) 
Trump, however, was wrong in this assertion.
U.S. Needs More Immigrants
Immediately after the roundtable, U.S. Representative Rep. Pramila Jayapal (Dem., WA) rejected the contention that the U.S. was “full.” She said, “It’s just a ridiculous statement. We have agriculture industries across the country that desperately need workers. We have construction industries in California and in other places that desperately need workers, and immigration has always been not just a question of immigration policy, but who we are as a country.”
A More complete rejection of Trump’s assertion came in an article in the New York Times. It starts by saying this assertion “ runs counter to the consensus among demographers and economists.” This conclusion was documented by the following:
- The U.S. is a country “where an aging population and declining birthrates among the native-born population are creating underpopulated cities and towns, vacant housing and troubled public finances. . . . Local officials in many of those places view a shrinking population and work force as an existential problem with few obvious solutions.”
- “In smaller cities and rural areas, demographic decline is a fundamental fact of life. A recent study by the Economic Innovation Group found that 80 percent of American counties, with a combined population of 149 million, saw a decline in their number of prime working-age adults from 2007 to 2017.. . . Local officials in many of those places view a shrinking population and work force as an existential problem with few obvious solutions.” 
- “Population growth in the United States has now hit its lowest level since 1937, partly because of a record-low fertility rate — the number of children born per woman.”
- “The Congressional Budget Office foresees the American labor force rising by only 0.5 percent a year over the coming decade, about one-third as fast as from 1950 to 2007. That is a crucial reason that economic growth is forecast to remain well below its late 20th-century levels.”
- “There are now 2.8 workers for every recipient of Social Security benefits, a rate on track to fall to 2.2 by 2035, according to the program’s trustees. Many state pension plans face even greater demography-induced strains.”
- John Lettieri, president of the Economic Innovation Group, fears a “declining population, falling home prices and weak public finances will create a vicious cycle that the places losing population could find hard to escape.”
One of the solutions to this U.S. problem is creation of “a program of ‘heartland visas,’ in which skilled immigrants could obtain work visas to the United States on the condition they live in one of the counties facing demographic decline — with troubled countries themselves deciding whether to participate.”
Washington Post Editorial
A Washington Post editorial lambasted Trump for his “full” statement. It points out that only a month before these remarks, Trump said, “‘So we’re going to let a lot of people come in because we need workers. We have to have workers.’ And the day after his ‘full’ assertion, the Department of Homeland Security nearly doubled the number of guest worker visas it would issue this year. 
The Post editorial then recited the following facts about why the U.S. needs more immigrants:
- The U.S. “faces a shrinking native-born labor force as baby boomers retire at a rate of 10,000 daily , unemployment reaches historically low levels, and immigration continues to dwindle from Mexico, a traditional source of cheap documented and undocumented employees. In March, the Labor Department reported there were 7.6 million unfilled jobs and just 6.5 million unemployed people, marking 12 straight months during which job openings have exceeded job seekers.”
- “The labor shortage is sapping growth as well as state and municipal revenue. Small businesses and major corporations have sounded the alarm as the delivery of goods is delayed by a drastic shortage of truckers, and housing prices in some markets are driven up by an inadequate supply of construction workers.”
- “The deficit is particularly acute in lower-wage jobs, as more and more Americans attend college and are reluctant to take positions in skilled trades and other jobs requiring manual labor. Home health aides who care for the sick and frail are in extremely short supply, as are workers in retail, restaurants and farms. The problem is exacerbated by a fertility rate — the number of children born per woman — that is the lowest since the 1930s. The impact of that decline until now has been partly offset by immigration.”
In short, the Post says, Trump’s “political strategy is a prescription for long-term economic anemia and declining competitiveness.”
 Kim & Perry, ‘Our country is full . . . . So turn around, Trump warns migrants during border roundtable, Wash. Post (April 5, 2019); Trump, Tweet (April 7, 2019).
 Irwin & Badger, Trump Says the U.S. Is ‘Full.’ Much of the Nation Has the Opposite Problem, N.Y. Times (April 9, 2019). This blog also frequently has discussed the U.S. need for more immigrants. See, e.g., “America’s Farmers Need Immigrants” (March 22, 2019); Businesses Need More Immigrants (March 24, 2019); U.S. Construction Industry Needs More Immigrants (April 3, 2019).
 The Economic Innovation Group has published a report on the facts of U.S. population and its impact on economic growth with fascinating U.S. maps showing various population facts. (Economic Innovation Group, From Managing Decline to Building the Future: Could a Heartland Visa Help Struggling Regions?, at 9-10 (April 2019). )