Difference:
1.) The US has a written constitution and Great Britian does not. Therefore its pretty difficult to change the constituion in the US but in Great Britian it is fairly easy.
2.) In the US the flag is a huge political symbol but in Great Britian it is not.
Similarities:
1.) Both the US and British governement have 2 houses.
2.)In the US the houses are equal in authority were as in Britian the House of Lords doesn't really have any say.
