A spokesperson for Rep. Towns declined to comment on Issa's claims.
In an article published in Politico last June, Issa and Towns discussed their working relationship as ranking member and chair, respectively, of the Oversight Committee.
"It's been a great relationship," said Towns at the time. "I'm encouraged, because we've been able to to do some creative things together."
Issa said the relationship was "always getting better." However, he also made a prediction that seems to have come true.
"If we have to go to the mattresses, we will," said Issa. "That day will come."