text:  It's debate day for President Biden and former President Trump as the two candidates will square off on their records tonight in Atlanta. ABC's Karen Travers with more on what undecided voters are thinking. Ernest Cook is an undecided voter in Idaho who told me he's looking to see if both candidates can, quote, keep it together. Keeping it together means not shouting at each other. Ernest told me a shouting match tonight indicates to him... A very, very sorry state of affairs in America.