Is "factually challenged" OK?

This is what happens when rules replace good manners and laws replace self-restraint. The result, no doubt, will be more ingenious and imaginative invective — followed by more rules.

House Rules Committee Chairwoman Louise Slaughter (D-NY) has released a helpful, updated primer for members regarding their conduct on the floor and in committees. ....

Under section 370 of the House Rules and Manual it has been held that a Member could:

• refer to the government as “something hated, something oppressive.”
• refer to the President as “using legislative or judicial pork.”
• refer to a Presidential message as a “disgrace to the country.”
• refer to unnamed officials as “our half-baked nitwits handling foreign affairs.”

Likewise, it has been held that a member could not:

• call the President a “liar.”
• call the President a “hypocrite.”
• describe the President’s veto of a bill as “cowardly.”
• charge that the President has been “intellectually dishonest.”
• refer to the President as “giving aid and comfort to the enemy.”
• refer to alleged “sexual misconduct on the President’s part.”

House guidelines for Presidential put-downs - Glenn Thrush - POLITICO.com