How did the election of 1970 change the way candidates ran their campaign

in 1968 Democratic National Convention in Chicago was a stark demonstration of just how divided the Democratic party had become. Students and members of the counterculture, known collectively as the "New Left" made up one faction, while the older generation of New Deal Democrats, which became known as the "Old Left," constituted another. The convention descended into utter chaos as thousands of antiwar activists converged on the streets of Chicago, where law enforcement officers clubbed them with nightsticks and doused them in tear gas.