Senator Rand Paul, a likely candidate for the Republican presidential nomination in 2016, took a shot this week at another likely contender, New Jersey governor Chris Christie. In an interview with Politico, Paul said Christie’s decision to hold a special Senate election in October “doesn’t seem to be very conservative.”

“I think when sometimes when you do things, and the appearances are you’ve done them simply for your benefit, and not the party’s benefit, that may be a problem,” Paul said. “I think the fact that he didn’t appoint somebody for a two-year period, and he set up a different election for three weeks before that’s going to cost $25 million, I think some people will say that doesn’t seem to be very conservative.”