Regime theory is often applied to policy issue areas, such as defense, that have a very long history.

机制理论经常被运用在政策问题领域，比如有很长历史的防御政策。

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The president outlined several areas in which the U.S.can advance the issue.

VOA: standard.2009.05.19

He may have convinced senior White House strategists that diplomacy is a political winner, paying dividends across issue areas.

CNN: Commentary: Bill Clinton shows that diplomacy works

And I think Blue Dogs can be characterized around three main issue areas.

NPR: Blue Dogs Democrats Have a Centrist Agenda

In that role she served as the principal advisor to the Deputy Chief of Staff for Policy and interacted with Senior Administration officials and Federal agencies to develop and implement policy in issue areas such as energy, jobs and the economy, education, veterans and health care reform.

WHITEHOUSE: Office of Cabinet Affairs