David Brock's MediaMatters.org slams Bill O'Reilly for what it said is the repeating of an old myth that the late Gov. Robert Casey of Pennsylvania was blocked from addressing the '92 Democratic National Convention because he opposed abortion.

Brock's L-zine points to a 1996 article in The New Republic by Michael Crowley, in which James Carville and Paul Begala - surprise! - deny Casey was silenced over abortion.

Car-gala said Casey was kept off the podium in '92 because he didn't support Bill Clinton for president. They didn't add - as they should have - that Casey didn't support him because of the abortion issue. Not only that, but another anti-Clinton but pro-choice Democrat, Jerry Brown, did speak at that convention in prime time.

Remembers journalist Nat Hentoff:

It was at the 1992 Democratic Convention that then-Pennsylvania Gov. Robert Casey, whom I had the privilege of knowing, was prevented from speaking. This, even though, of all of the governors in the nation, he had done more than any other for the poor (including providing health insurance for children whose families couldn't afford it, but were not eligible for public assistance).

For women, Casey required HMOs to pay for annual mammograms for women over age 40, and he set up multi-dimensional health care programs for women and children. But the late governor was pro-life, and so Clinton's convention handlers blocked him from speaking. Casey asked me at the time: "What has become of the Democratic Party I once knew? It's become a wholly owned subsidiary of the National Abortion Rights Action League."