Shortly before Vice President Kamala Harris delivered her concession speech on Wednesday, U.S. Sen. Bernie Sanders forcefully called out Democratic Party leadership for losing the White House and at least one chamber of Congress to Republicans. “It should come as no great surprise that a Democratic Party which has abandoned working-class people would find that the working class has abandoned them,” Sanders (I-Vt.) said in a statement. “First, it was the white working class, and now it is Latino and Black workers as well.” “While the Democratic leadership defends the status quo, the American pe…