Where do ethics and politics meet?

Political ethics (also known as political morality or public ethics) is the practice of making moral judgements about political action and political agents.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.