The media’s backlash against Paul Ryan and the factually unsound premises of his Wednesday convention speech continued well into Thursday, and turned what the GOP hoped would be glowing headlines into a less lustrous mix of fawning and criticism.

“There are some things that I think were factually questionable,” said Fox News anchor Chris Wallace on Thursday, adding himself to the list of unexpected journalists to question the accuracy of the would-be vice president’s arguments.

Time magazine’s Mark Halperin added on MSNBC that “there’s lots of substantive flaws to what he talked about.”

Wallace and Halperin — along with many other reporters and punditss — also hailed Ryan as an effective speaker who rallied the Republican crowd with his fierce attacks on President Obama. But their criticisms of his substance threaten to undermine Ryan’s reputation as an honest broker, which has been central to his rise as the Republican Party’s intellectual standard bearer.