Discussing media scrutiny over unsubstantiated claims that Dr. Ben Carson has made in his memoirs, Hardball host Chris Matthews pontificated about the importance of fact-checking one's own book to make sure everything is kosher. But where was he when the veracity of President Obama's memoirs was brought up in 2012?

As I blogged Monday night, MSNBC Hardball host Chris Matthews gave Virginia Democratic Gov. Terry McAuliffe a platform to urge liberal viewers at home who live in the Old Dominion to vote pro-gun control by voting for Democrats the following day. Of course, that didn't pan out like either hoped. Republicans retained control of the both houses of the state legislature, while Democrats had hoped to flip the Senate over to their control.

Tomorrow marks one year to the day when Larry Hogan soundly defeated Martin O'Malley protege Lt. Gov. Anthony Brown in the Maryland gubernatorial contest. Yet with O'Malley in the hot seat on the November 3 edition of Hardball, host Chris Matthews failed to ask him how this embarrassing defeat -- and Gov. Hogan's healthy job-approval ratings to this day -- might be a signal to his fellow Democrats that he's a solid pick for leading their party forward.

Of course, perhaps it was only fitting since the governor's wife donated a couple thousand to Kathleen Matthews's campaign for the U.S. House of Representatives.

"This got a little revolting tonight," MSNBC's Chris Matthews lamented to colleague Chris Jansing in a post-debate special edition of Hardball Wednesday night. Matthews was chagrined with Republican Sens. Ted Cruz (Texas) and Marco Rubio (Fla.) scoring points with the debate audience by attacking the liberal media.

Sen. Ted Cruz (R-Texas) took CNBC debate panelists to task for their liberal bias: “The questions that have been asked so far at this debate illustrate why the American people don’t trust the media....The contrast with the Democratic debate, where every thought and question from the media was, which of you is more handsome and why?...And nobody watching at home believes that any of the moderators has any intention of voting in a Republican primary.”

Well, CNBC GOP debate moderator John Harwood didn't waste any time. Shortly into the "undercard" debate tonight, the journalist pressed Louisiana Gov. Bobby Jindal about whether he would "do for the federal budget what you did for the Louisiana budget" and citing "many Republicans are opposed to the approach that you've taken in Louisiana" by "tr[ying] so hard to avoid anything that can be called a tax increase."

During a segment on MSNBC Tuesday evening devoted to the question of whether Sen. Bernie Sanders (D-Vt.) has engaged in sexist criticisms of Democratic presidential primary opponent Hillary Clinton, anchor Richard Wolffe played for his audience a Clinton campaign ad centered on the issue of "equal pay," underscoring how the former first lady is running on feminist themes to fire up female Democratic voters in New Hampshire and Iowa.

Nowhere in the segment, however, did Wolffe -- or his panelists feminist writer Amanda Marcotte and Democratic strategist Tara Dowdell -- note that there's evidence that Clinton, both as a senator and as secretary of state, paid her male staffers substantially more than her female ones.

Sometimes the bias happens right under your nose. Here's to the folks at StandWithUs for their eagle-eyed observation of bias earlier this evening during CNN's live broadcast of the Benghazi hearing. "Palestinians shot boarding kids' bus," reads the header. In truth, the perpetrators shot were terrorists intending on harming innocent children.