Candidates often struggle in office to live up to foreign policy promises . Obama has promised to help arm Syrian rebels , talked tough on Iran . Much of Obama 's foreign policy agenda from this campaign has n't been realized . Presidential history is littered with unmet challenges from the past , experts say .
Candidates often struggle in office to live up to foreign policy promises . Romney has promised to help arm Syrian rebels , talked tough on Iran . Much of Obama 's foreign policy agenda from 2008 campaign has n't been realized . Presidential history is littered with unmet promises from the trail , experts say .