Errata: Corrections to the URL links supplied to access supplementary material in the print and online editions of PS: Political Science & Politics, vol.49, no. 4, published online on 12 October 2016 and in print on 24 October 2016.

Cambridge University Press regrets that the URL links provided in the print and online editions of the October 2016 issue of PS: Political Science & Politics were incomplete and therefore did not enable access to the supplemental material from the published articles.

The typesetter omitted the numbers “/10.1017” from the URL links to all of the supplementary material published in the October 2016 issue of PS: Political Science & Politics. These URL links should have contained the numbers “/10.1017” as part of the full URL.

The original articles have been corrected online to rectify this error.

The articles affected by this omission are as follows:

Patrick A. Stewart, Austin D. Eubanks, and Jason Miller

“Please Clap”: Applause, Laughter, and Booing during the 2016 GOP Presidential Primary Debates

The URL to access the supplemental material as listed on page 700 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001451

Diana C. Mutz

Harry Potter and the Deathly Donald

The URL to access the supplemental material as listed on page 728 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001633

Leslie Caughell

When Playing the Woman Card is Playing Trump: Assessing the Efficacy of Framing Campaigns as Historic

The URL to access the supplemental material as listed on page 741 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001438

Justin H. Gross and Kaylee T. Johnson

Twitter Taunts and Tirades: Negative Campaigning in the Age of Trump

The URL to access the supplemental material as listed on page 752 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001700

André Blais and Anja Kilibarda

Correct Voting and Post-Election Regret

The URL to access the supplemental material as listed on page 765 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001372

Kyle Endres

The Accuracy of Microtargeted Policy Positions

The URL to access the supplemental material as listed on page 773 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001645

Brian F. Harrison and Melissa R. Michelson

More Than a Game: Football Fans and Marriage Equality

The URL to access the supplemental material as listed on page 786 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001359

Daniela R. Piccio

“United in Diversity”: Research Ethics in European Political Science

The URL to access the supplemental material as listed on page 843 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001542

Herbert F. Weisberg

Reflections: The Michigan Four and Their Study of American Voters: A Biography of a Collaboration

The URL to access the supplemental material as listed on page 856 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S104909651600161X

Kenneth E. Fernandez, Jason A. Husser, and Mary G. Macdonald

Polling the Pollsters: A Survey of Academic Survey Organizations

The URL to access the supplemental material as listed on page 865 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S104909651600144X

Elizabeth A. Bennion and David W. Nickerson

I Will Register and Vote, If You Teach Me How: A Field Experiment Testing Voter Registration in College Classrooms

The URL to access the supplemental material as listed on page 871 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001360

Gayle Alberda

Campaign Simulation for American Government: An Active Learning Approach to Campaigns and Elections

The URL to access the supplemental material as listed on page 875 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S1049096516001566

Jacqueline M. Sievert, Michael K. McDonald, Charles J. Fagan, and Niall Michelsen

Yes, But Did They Learn Anything? An Experimental Investigation of Voter Decision Making on Foreign Policy Issues

The URL to access the supplemental material as listed on page 884 is incorrect.

The correct URL for this article is http://dx.doi.org/10.1017/S104909651600158X