Biden ties Trump's 'toxic tongue' to U.S. shootings as Democrats ramp up criticism

Democratic 2020 presidential candidate and former U.S Vice President Joe Biden speaks at the UnidosUS Annual Conference, in San Diego, California, U.S., August 5, 2019. REUTERS/Mike Blake?

LOS ANGELES/CHARLESTON, S.C. (Reuters) - Democratic presidential front-runner Joe Biden on Wednesday accused Republican President Donald Trump of fueling the white supremacy blamed for several U.S. mass shootings, as Trump prepared to visit two cities hit by massacres last weekend.

"In both clear language and in code, this president has fanned the flames of white supremacy in this nation," former Vice President Biden was expected to say in a speech in Burlington, Iowa, on Wednesday, according to excerpts released in advance.