Conservative guests outnumbered progressive guests on four of the five major Sunday political news shows since the confirmation hearings for Brett Kavanaugh began. On the September 9 and 16 Sunday shows, 46.5 percent of guests leaned conservative while just 31.5 percent of guests leaned liberal. Additionally, 22 percent were neutral.

Out of the 73 guests who appeared on CBS’ Face the Nation, Fox’s Fox News Sunday, NBC’s Meet the Press, CNN’s State of the Union, and ABC’s This Week, 34 guests were either Republicans or leaned conservative. Only 23 guests were Democrats or liberal-leaning, and 16 guests were ideologically neutral.

Of the guests who discussed Kavanaugh, 13 leaned conservative while nine leaned liberal.

On four of the five shows -- This Week, Face the Nation, Fox News Sunday, and Meet the Press -- conservative guests outnumbered progressive guests. CNN’s State of the Union featured an equal number of right- and left-leaning guests. Fox News Sunday had the clearest partisan bias; eight guests leaned conservative while only three guests leaned liberal.

Panels on most shows tended to tilt conservative as well. Panels on both episodes of Meet the Press and Fox News Sunday tilted conservative. On Face the Nation, one panel tilted liberal while the other panel was neutral. Panels on This Week and State of the Union were all neutral.

Sunday shows have a long history of tilting conservative -- a trend Media Matters has also highlighted in previous studies.

Steve Morris and Tyler Monroe contributed to this piece.