Media bias has gone from bad to ridiculous.

During Mitt Romney's overseas visit earlier this week, 86 percent of the coverage on ABC, CBS and NBC "emphasized Romney's perceived gaffes," according to a content analysis of 21 major news stories by the Media Research Center, which also compared Mr. Romney's trip to a similar excursion made by President Obama in 2008.

The results: The broadcast networks committed 53 minutes of almost entirely negative coverage to Mr. Romney, and 92 minutes of "gushing" to Mr. Obama.

"The near unanimous negativity of their coverage is as outrageous as it is transparent," observes the center's founder Brent Bozell. "It's impossible to look at the fawning coverage of Obama's trip in 2008 compared to the sliming Romney has taken in 2012 and not see a clear agenda on the part of the liberal media."