All of them are Principles of Government.
<em>Individual rights</em> are unalienable rights that are guaranteed to all citizens.
<em>Popular sovereignty</em> means that the authority of the government comes from the people that elect their representatives.
<em>Separation of Powers</em> is a separation of responsibility and limitations that are given to each branch. The system of <em>check and balances</em> is also a part of this, giving each branch a way to limit other branch and control it.
<em>Federalism</em> is a system of government that divides the power into national and state governments.
Answer:
They ignored it
Explanation:
The Boland Amendment aimed to prohibit the federal government from providing support to the Contras in Nicaragua. Instead of directly getting involved like that, they decided to ask someone else to support it, and that was Iran. Iran was the subject of an arms embargo which meant that the Contras were able to buy arms (guns) from Iran to overthrow the Nicaraguan government, and this ended up being a political scandal in Reagan's administration.