What basic Cold War assumption did President Nixon and Kissinger challenge?

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?

Which part of the map is the subregion europe