Story highlights Hillary Clinton said Thursday she is far less impressed with Donald Trump's string of Republican primary victories than he is

"I think he has -- if you really analyze it -- a pretty narrow base," Clinton said

Tampa, Florida (CNN) Hillary Clinton said Thursday she is far less impressed with Donald Trump's string of Republican primary victories than he is.

"I think he has -- if you really analyze it -- a pretty narrow base," Clinton said, responding to a question from CNN at the end of a rally here. "If he gets nominated, we're going to have a very vigorous general election if I'm the nominee."

When asked whether the real estate mogul is yet to be defined to the type of a broader electorate that he would face in a general election, she turned and flashed a wide smile, "We'll wait and find out."

Clinton acknowledged Thursday that her Democratic nominating fight with Bernie Sanders could likely continue until the end of the primary calendar in June, a costly battle she said she could hardly blame her rival for waging.

"If we go to the end, we go to the end," she said, "just as I did in 2008."