The vast rightwing...

But you knew this.

Advanced even this week by Republican stalwarts including the party’s last vice-presidential nominee, Sarah Palin, and Charles E. Grassley, the veteran Iowa senator, the nature of the assertion nonetheless seemed reminiscent of the modern-day viral Internet campaigns that dogged Mr. Obama last year, falsely calling him a Muslim and questioning his nationality.

But the rumor — which has come up at Congressional town-hall-style meetings this week in spite of an avalanche of reports laying out why it was false — was not born of anonymous e-mailers, partisan bloggers or stealthy cyberconspiracy theorists.

Rather, it has a far more mainstream provenance, openly emanating months ago from many of the same pundits and conservative media outlets that were central in defeating President Bill Clinton’s health care proposals 16 years ago, including the editorial board of The Washington Times, the American Spectator magazine and Betsy McCaughey, whose 1994 health care critique made her a star of the conservative movement (and ultimately, New York’s lieutenant governor).

It is encouraging that the New York Times recognizes this and is calling bullshit on it. But as long as the Chuck Grassley's of the world are considered Very Serious People, then real reform is doomed.