Since 1960, the immigrant population in the united states has
gotten much smaller.
virtually disappeared.
become less diverse.
become more diverse.

the answer is a) james madison.

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.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp