White House adviser Stephen Miller was in deep with Breitbart.

Last week, the Southern Poverty Law Center published emails sent from Miller to the right-wing publication during the 2016 race showing how he directed white nationalist viewpoints on the site, and how those views "became policy" in the Trump White House. A second batch of emails now shows there's more to Miller's back-door Breitbart publication, including how he fed the site attacks on then-presidential candidate Marco Rubio.

The new round of emails obtained via former Breitbart editor Katie McHugh shows even more news stories, opinion pieces, and other comments Miller suggested the site could turn into new articles. For example, as a communications director for then-Sen. Jeff Sessions, he sent over at least 10 attacks on Sen. Marco Rubio (R-Fla.) that fueled Breitbart's attempts to "harm his candidacy," McHugh said. And when Fox News and other conservative outlets said anything positive about Rubio, he suggested Breitbart take them down as well. In some cases, he explicitly said his suggested articles should be published under the nondescript byline "Breitbart News."

McHugh was sent many of these emails, but Breitbart editor turned White House adviser Stephen Bannon and other editors were copied on the emails too. McHugh was a young editor at the site at the time, and said "no one at Breitbart ever raised a question about whether this was ethical." The White House and Bannon did not respond to a request for comment, while Breitbart said Miller's "pitches" were "not exactly a newsflash." The White House previously said "The SPLC … is an utterly-discredited, long-debunked far-left smear organization" in response to reporting about Miller. Kathryn Krawczyk