Attacking Trump, Democrat Kaine makes campaign-trail debut

By Amanda Becker and John Whitesides MIAMI/WASHINGTON (Reuters) - Democrat Tim Kaine made his first appearance on the campaign trail as Hillary Clinton's vice presidential running mate on Saturday, touting an optimistic view of America and leaping to attack Republican presidential nominee Donald Trump's record. Joining Clinton at a rally in the battleground state of Florida, the bilingual Kaine peppered Spanish-language phrases into a speech focused on introducing himself to voters unfamiliar with the low-key U.S. senator from Virginia. Kaine criticized Trump's recent suggestion he might not honor U.S. security commitments to NATO in Europe, and the real estate mogul's history of casino bankruptcies and founding the failed Trump University.