What is the “myth” of America's founding according to Howard Zinn?

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

ok i will try

explanation:

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers