What democratic feature in the U. S. Senate was introduced during the Progressive Era? How did this expand popular sovereignty in the U. S.?

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

d) he bring down boss tweed and tammany hall.

pope john paul ii ( his real name is karol wojtyla) and lech walesa ( the leader of the solidarity movement ) were both born in poland.