Thomas E. Mann and Norman J. Ornstein, two well-respected, centrist congressional experts, will make their first Sunday talk show appearance on the June 3 edition of MSNBC's Up with Chris Hayes after being largely ignored by the media following their recent conclusion that Republicans are responsible for the current “dysfunctional” Congress.

On today's edition of his show, Hayes announced that Mann and Ornstein would make their “long-awaited, controversial first appearance on a national Sunday news program” to discuss their Washington Post op-ed and new book detailing the causes of political gridlock in Washington.

As The Washington Post's Greg Sargent and others have noted, Mann and Ornstein have been shut out of the Sunday morning talk shows since their April 29 op-ed. Moreover, as Media Matters' has reported, the top five national newspapers failed to mention Mann and Ornstein's recent observations about the dysfunction in Congress even though they regularly quoted the pair in past news articles.

Media Matters also found that in the months following the publication of Mann and Ornstein's 2006 book, The Broken Branch: How Congress Is Failing America and How to Get It Back on Track (which was critical of both Democrats and Republicans), the two frequently appeared and were quoted on cable news shows, suggesting that the media is now giving Republicans a pass to avoid appearing biased.