Your first stop should be some kind of overview of your leader and their country. Wikipedia is a great place to start, but you should also try the databases listed below. Start with Reference or Biographical articles.
Scroll down to the search bar to search for your country, and check out the introduction for a succinct analytical look at the country's political background. Also includes lots of statistical information.
Scroll down to click on your country of interest and then click on View Fact Sheet. Includes important information on political and economic relationships with the US.
