* A note on measurement: I searched LexisNexis Academic for stories in which both IRS, I.R.S., or Internal Revenue Service and audit, exempt, target, or conservative appeared in the headline or lead between May 11 and July 28. I restricted the New York Times results to those that appeared in the A-section and were written by the national desk. The Washington Post search was restricted to A-section stories that were attributed to the print newspaper rather than its website or blogs. Front-page articles for Politico were classified using time-stamped snapshots taken by the Internet Archive’s Wayback Machine when available. Articles were coded as appearing on the front page if they were primary headlines in the first three rows of content when the top headline was a full block (example) or in the first four rows when the lead story was smaller and had two vertically aligned stories to its right (example). This area typically included approximately the same number of stories as a newspaper front page.

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Brendan Nyhan is an assistant professor of government at Dartmouth College. He blogs at brendan-nyhan.com and tweets @BrendanNyhan.