Toxic algae and ice cream party keep top Republicans from Cleveland

By Steve Holland WASHINGTON (Reuters) - As Republicans spilled into Cleveland on Monday to nominate Donald Trump as their presidential candidate, 2012 nominee Mitt Romney had an equally crucial task: Entertaining his grandchildren at his lakeside summer house in New Hampshire. U.S. Senator John McCain of Arizona, the 2008 Republican nominee who has endorsed Trump despite the latter's insults, attended an ice cream party with his wife, Cindy, and volunteers in his re-election campaign in Prescott