A Harvard/Harris poll produced in the summer of 2021 revealed that 80% of Americans believe that illegal immigration is a serious problem. 68% indicated they believed Biden was encouraging illegal immigration. 55% stated they believed President Trump’s immigration policies should have remained intact. Pollster Mark Penn wrote: | A Harvard/Harris poll produced in the summer of 2021 revealed that 80% of Americans believe that illegal immigration is a serious problem. 68% indicated they believed Biden was encouraging illegal immigration. 55% stated they believed President Trump’s immigration policies should have remained intact. Pollster Mark Penn wrote: |