What is the idea of parliamentary sovereignty from the American and British point of view?

Many of
the aspects of the British unwritten constitution made their way into the United States
Constitution. Some of these were a two-house legislative body and of course a powerful
executive, but the concept of "parliamentary sovereignty" is very different. What this
means is that parliament is the supreme, or sovereign, body in the land. This developed over
time, especially in the late eighteenth through the early nineteenth centuries.

Parliament has the power to enact laws that cannot be changed except by a future
parliament. They cannot, for example, be overturned by the courts, though in practice, British
courts do modify parliamentary laws through their interpretations of them. This has been
especially true since the establishment of a Supreme Court (by act of...

href="https://www.parliament.uk/about/how/sovereignty/">https://www.parliament.uk/about/how/sovereignty/