Maybe it's the heat.
ABC News reports:
Spokesman Rick Gorka, whose curse-laden flap with the press in Poland rounded out the news reports culminating Romney’s trip, is “taking some time off the trail” after a week abroad, per a Romney aide. Gorka normally serves as the traveling spokesman for Romney on all his campaign trips.
The "curse-laden flap" is in reference to Gorka telling the American press to "kiss my ass" after questions were shouted out to Mitt Romney overseas.
Gorka's time off seems to be making a difference already. His latest tweet, posted this morning, is a happy birthday wish to an AP photojournalist.