Ageneral limitation on the power of the president is the possibility of impeachment. the ability to grant pardons. the ability to make treaties. the threat of treason.

The possibility of impeachment shows a general limitation on the power of the president.

This means that a president is not immune to any kind of punishment, as an impeachment proceeding may remove him from power once the allegations thrown at him/her will be proven true.

imperialism is a type of government that seeks to increase its size, either by forcing (through war) or influencing (through politics) other countries to submit to their rule. the sun never sets on the roman empire, or so went the saying when rome controlled the majority of europe 2000 years ago.