Core argument
Bennett (1990) found that US press coverage of Nicaragua policy included critical voices in proportion to the scale of congressional debate. Because of objectivity norms and routines, reporters rely on official sources and judge what counts as 'newsworthy controversy' by the distribution of opinion among powerful elites. Views raised by citizens or movements outside the elite are thus marginalized unless some elites endorse them. The argument connects to research on gatekeeping.
War coverage and evidence
Hallin (1986) found that Vietnam coverage was initially favorable to the government and turned critical only after Washington elites divided. Zaller and Chiu (1996) showed quantitatively that coverage of foreign policy crises from 1945 to 1991 followed shifts in congressional opinion, and Mermin (1999) found the same pattern in coverage of post-Vietnam US interventions. Bennett, Lawrence and Livingston (2006) showed that in the Abu Ghraib scandal the press followed the government's term 'abuse' rather than calling it 'torture'.
Extensions and limits
Entman (2003) complemented indexing with the 'cascading activation model', in which frames flow from the administration to elites, the media and the public while allowing the press occasionally to develop alternative frames on its own. Livingston and Bennett (2003) found that live and satellite technology increased coverage of events outside official sources, though interpretation still relied on officials. The theory is used alongside agenda-setting and framing research to understand media power.
FAQ
- What is the indexing hypothesis in simple terms?
- How critically the press covers an issue depends on how much politicians themselves disagree about it.
- Why does the press follow elites?
- Reporters rely on official sources to maintain objectivity and use elite disagreement as their yardstick of newsworthiness.
Sources reviewed: 2026-10-26
References
- Bennett, W. L. (1990). Toward a theory of press-state relations in the United States. Journal of Communication, 40(2), 103–127. The founding article.
- Bennett, W. L., Lawrence, R. G., & Livingston, S. (2006). None dare call it torture: Indexing and the limits of press independence in the Abu Ghraib scandal. Journal of Communication, 56(3), 467–485. Abu Ghraib case.
- Zaller, J., & Chiu, D. (1996). Government's little helper: U.S. press coverage of foreign policy crises, 1945–1991. Political Communication, 13(4), 385–405. Foreign policy crises.
- Entman, R. M. (2003). Cascading activation: Contesting the White House's frame after 9/11. Political Communication, 20(4), 415–432. Cascading activation.
- Livingston, S., & Bennett, W. L. (2003). Gatekeeping, indexing, and live-event news: Is technology altering the construction of news? Political Communication, 20(4), 363–380. Live-event news.
- Hallin, D. C. (1986). The "uncensored war": The media and Vietnam. Oxford University Press. Vietnam coverage.
- Mermin, J. (1999). Debating war and peace: Media coverage of U.S. intervention in the post-Vietnam era. Princeton University Press. Post-Vietnam interventions.