Answer:
they were all apart of the Democratic party and one of the similar changes they made had to do something with health care ( I'm not good with history)
A nations power based on wealth is called is usually referred to as GDP, or "Gross Domestic Product" (if I'm understanding the question correctly. Although this isn't always a great indicator of the fundamental "health" of the country.<span />
The Irish immigration back then was mainly because of the potato famine issue.
If the President, VP and Speak of the House die, the President Pro Tempore of the Senate will preside as the new President of the United States.
D. Connecticut compromise