Tom McInerney
Tom McInerney also told CNBC he didn't think the former vice president had performed well in this week's Democratic primary debate.
Tom McInerney previously has promoted the birther conspiracy theory against President Barack Obama.
"No one calls him 'Songbird John' except for crazy people and jerks — and I’m using my language carefully here,” Tapper said.
"That's why they call him 'Songbird John.'"
