Political scandals and vertical contagion in multilevel systems
Political scandals and vertical contagion in multilevel systems
Can a scandal in one political sphere tarnish—or unexpectedly polish—the reputation of leaders and politicians in another? This study investigates the impact of political scandals in multi-level political systems and explores three possibilities: contagion, where trust erodes across all political levels; containment, where evaluations are limited to the specific institutions involved; and contrast, where actors at other levels appear more trustworthy in comparison. This paper presents the first experimental test of vertical contagion, containment, and contrast effects following real-world scandals in UK and Scottish politics: Partygate and Campervangate. We find weak evidence of contagion in the Scottish-level ‘Campervangate’ scandal, although trust reductions were generally small and often not statistically significant. However, the ‘Partygate’ scandal reveals a distinct contrast effect: trust decreased in UK political actors but increased at the Scottish level. These results suggest that scandals in multi-level polities can influence evaluations of otherwise ‘innocent’ political actors with troubling consequences for democratic accountability mechanisms.
Accountability, multilevel politics, political scandal, trust
Larner, Jac
5004f2fe-e6e8-4d3b-9dc4-1e9c3636e215
Johns, Robert
02861bc9-b704-49b1-bbc7-cf1c1e9b7a35
Henderson, Ailsa
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McMillan, Fraser
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Carman, Christopher
c62d237b-85a0-43ff-8e49-87e908bfbe5e
7 November 2025
Larner, Jac
5004f2fe-e6e8-4d3b-9dc4-1e9c3636e215
Johns, Robert
02861bc9-b704-49b1-bbc7-cf1c1e9b7a35
Henderson, Ailsa
116d5687-0776-4152-b219-ed6c45c134be
McMillan, Fraser
7e1b5fc7-f86a-4a72-a8b4-ab1f73b28f8d
Carman, Christopher
c62d237b-85a0-43ff-8e49-87e908bfbe5e
Larner, Jac, Johns, Robert, Henderson, Ailsa, McMillan, Fraser and Carman, Christopher
(2025)
Political scandals and vertical contagion in multilevel systems.
British Journal of Political Science, 55, [e154].
(doi:10.1017/S0007123425000043).
Abstract
Can a scandal in one political sphere tarnish—or unexpectedly polish—the reputation of leaders and politicians in another? This study investigates the impact of political scandals in multi-level political systems and explores three possibilities: contagion, where trust erodes across all political levels; containment, where evaluations are limited to the specific institutions involved; and contrast, where actors at other levels appear more trustworthy in comparison. This paper presents the first experimental test of vertical contagion, containment, and contrast effects following real-world scandals in UK and Scottish politics: Partygate and Campervangate. We find weak evidence of contagion in the Scottish-level ‘Campervangate’ scandal, although trust reductions were generally small and often not statistically significant. However, the ‘Partygate’ scandal reveals a distinct contrast effect: trust decreased in UK political actors but increased at the Scottish level. These results suggest that scandals in multi-level polities can influence evaluations of otherwise ‘innocent’ political actors with troubling consequences for democratic accountability mechanisms.
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Accepted/In Press date: 13 January 2025
Published date: 7 November 2025
Additional Information:
Publisher Copyright:
© The Author(s), 2025. Published by Cambridge University Press.
Keywords:
Accountability, multilevel politics, political scandal, trust
Identifiers
Local EPrints ID: 502663
URI: http://eprints.soton.ac.uk/id/eprint/502663
ISSN: 0007-1234
PURE UUID: 38859fb2-bfce-47a1-91a8-2c4c86d5ecc0
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Date deposited: 03 Jul 2025 16:54
Last modified: 29 Nov 2025 03:07
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Contributors
Author:
Jac Larner
Author:
Robert Johns
Author:
Ailsa Henderson
Author:
Fraser McMillan
Author:
Christopher Carman
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