Examine the behavior of those who vote and those who do not. Understand the sociological and psychological factors that affect voting and voter behavior. – Voters are influenced by sociological factors such as income, occupation,education, gender, age, religion, ethnic background, geography, and family.
The president : Donald Trump
"The Constitution provides that the president "shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two-thirds of the Senators present concur" (Article II, section 2)."
https://www.senate.gov/artandhistory/history/common/briefing/Treaties.htm
Hope this helps
I would say internationally i kind of dont get the question that is bieng asked
Incomplete question. Try adding the said article please.