In the 1840s, why did so many irish people move to the united states?

they were suffering religious persecution in ireland.
there was a war going on at that time in ireland.
ireland’s potato crop failed due to a disease.
ireland was very overpopulated at that time.

A. identify the constitutional clause that is common to both mccutcheon v. federal election commission (2014) and citizens united v. federal election commission (2010). based on the constitutional clause identified in part a, explain why the facts of citizens united v. federal election commission (2010) led to a similar holding to the holding in mccutcheon v. federal election commission (2014). describe an action that members of the public who disagree with the holding in mccutcheon v. federal election commission could take to limit its impact.