Cat fight on the left? On today's "Tucker," a "Media Matters" representative denied Hillary's claim that she "helped start" the organization.

Welcome back, Tucker. Really.

While Carlson was away, guest host David Shuster sullied Tucker's name-sake show with the tasteless "gotcha" game he sprang on Rep. Marsha Blackburn (R-Tenn.), then compounded matters by leading a liberal love-in.

Tucker's been back in the saddle for a couple days, and this evening took on Wesley Clark and later a representative of Media Matters.

Speaking with Paul Waldman, Senior Fellow and Director of Special Projects of "Media Matters," Carlson displayed the graphic shown here, in which Hillary Clinton stated that she had "helped start" Media Matters. Under close questioning by Carlson, Waldman wound up contradicting Hillary's claim.

View video here.