Democratic candidates unite in rage at Trump following latest mass shootings

(CNN)The mass shootings in Texas and Ohio have turned the 2020 presidential campaign into an increasingly visceral referendum on the nature of Donald Trump’s presidency and the message that delivered him to the White House. Former Vice President Joe Biden and New Jersey Sen. Cory Booker laced their calls for unity on Wednesday with lacerating attacks on Trump in specially scheduled speeches, Biden’s in Iowa and Booker from the Emanuel AME Church in downtown Charleston, South Carolina, where nine black parishioners were killed by a white supremacist gunman in 2015. From the beginning of his campaign, Biden has cast the 2020 election as a “battle for the soul of this nation.” But in the video announcing his candidacy, and in …