Story highlights Trump emphasizes the temporary nature of the ban

It's the latest lightning-speed evolution for Trump

Washington (CNN) Donald Trump, who issued a December press release "calling for a total and complete shutdown of Muslims entering the United States," said Wednesday such a ban "hasn't been called for yet" and it was "only a suggestion."

It's the latest lightning-speed evolution for the real estate tycoon as he pivots from the provocateur who upended the Republican primary to a general election candidate preparing to square off with likely Democratic nominee Hillary Clinton.

"We have a serious problem, and it's a temporary ban -- it hasn't been called for yet, nobody's done it, this is just a suggestion until we find out what's going on," the presumptive Republican presidential nominee told Fox News Radio's Brian Kilmeade Wednesday.

But when Trump first introduced the proposed ban back in December he explicitly said in both a speech and in a press release: "Donald J. Trump is calling for a total and complete shutdown of Muslims entering the United States until our country's representatives can figure out what is going on."

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