Blitzer: Well you don’t have any evidence though, right?
Rep. McHenry: Well look at the fact points…four weeks out from a national election…
Blitzer: Yes or no: do you have any evidence? Do you have any evidence Congressman?
Rep. McHenry: Do you have any evidence that says they weren’t involved?
Blitzer: I’m just asking if you’re just throwing out an accusation or if you have any hard evidence.
Rep. McHenry: No, it’s a question Wolf. The question remains, were they involved? And if they were not involved they need to say clearly, and it’s a question, it’s not an accusation.
Blitzer: Well, they are denying that they had anything to do with this. source
Sort of like an Appeal to Ignorance. Maybe better described as an illegitimate shift of the burden of argument.
“I know the speaker didn’t go over a bridge and leave a young person in the water, and then have a press conference the next day,” said Shays, R-4th District, referring to the 1969 incident in which the Massachusetts Democrat drove a car that plunged into the water and a young campaign worker died.
“Dennis Hastert didn’t kill anybody,” he added. source
Nice little ad hominem. Maybe even a form of the tu quoque?