President-elect Joe Biden on Thursday announced he’s choosing former Senate candidate Jaime Harrison to be the next Democratic National Committee (DNC) chair. Harrison, 44, failed to unseat Sen. Lindsey Graham (R-S.C.) in the 2020 election. He chaired the South Carolina Democratic Party for four years starting in 2013. He’s currently an associate chairman for the DNC. Harrison in a statement said he was “humbled and excited” to be picked by Biden. “Together, we’ll organize everywhere, invest in state parties, expand the map, and elect Democrats who will be champions for the working people of this country,” he said. Graham congratulated Harrison, writing in a tweet that “I’m confident he will do a good job representing the Democratic cause.” Current DNC Chair Tom Perez said Harrison would “do an incredible job building on the progress we’ve made and strengthening our party.” Biden also picked several vice chairs, including Atlanta Mayor Keisha …