McCain wrote on Twitter this morning:

"@SenJohnMcCain So Ahmadinejad wants to be first Iranian in space - wasn't he just there last week? 'Iran launches monkey into space'

Having evidently faced some backlash for his shot at the leader of a nation testing long-range ballistic missiles with very sad-looking animals, McCain later followed up on the social media site: "@SenJohnMcCain Re: Iran space tweet - lighten up folks, can't everyone take a joke?"