Hillary Clinton says Donald Trump unqualified to be president

U.S. Democratic presidential candidate Hillary Clinton speaks at Transylvania University in Lexington, Kentucky, U.S., May 16, 2016. REUTERS/Aaron P. Bernstein

WASHINGTON (Reuters) - Democratic presidential front-runner Hillary Clinton said on Thursday Republican candidate Donald Trump is unqualified to be president of the United States. "I know how hard this job is, and I know we need steadiness as well as strength and smarts in it, and I have concluded that he is not qualified to be president of the United States," she said in an interview on CNN. (Reporting by Alana Wise and Steve Holland)