Explain and evaluate the view that the executive and judicial branches of government have successfully undermined the concept of parliamentary sovereignty in recent years

Britain's democracy relies on its legislative branch (also known as Parliament) to represent its people and make binding decisions on legislation, particularly statute law. As the only elected branch, the legislature benefits from being a sovereign body. This means that its power is above that of the two other branches of government, the judiciary and the executive. However, because of the ambiguity caused by Britain's un-codified constitution, wherein the position of government is not entrenched in the legal system, this is subject to change according to political circumstances. For example, an indecisive Parliament may allow for the Prime Minister to overstretch their powers within the executive branch, as observed recently with Boris Johnson's premiership. Furthermore, the recent separation of powers between the judicial and legislative branch under the Constitutional Reform Act of 2005 has enabled the judiciary to benefit from increased political independence, thus undermining 'parliamentary sovereignty.' The suspension of Parliament (enacted by Boris Johnson) proves the extent to which this concept is at threat. This has consequentially increased the power of the Supreme Court (judiciary), as it now holds the responsibility of investigating the legality of Parliament's prorogation.