The violent attack on the Capitol cost lives, threatened the transition of presidential power and forever changed the way Congress does its work. One year later, we at POLITICO are looking back at those changes and how Washington is moving forward. Rep. Cheri Bustos still remembers her husband’s warning after she and her colleagues were trapped in the House chamber by violent rioters. “‘It is not going to get better out there,’” the Illinois Democrat recalled her county sheriff spouse telling her. The following year proved him right, Bustos added: “It’s only gotten worse.” Bustos is one of several retiring Democrats who told POLITICO that the insurrection, and the months of personal vitriol in the House that followed, propelled their decision not to seek reelection next November. It started before the attack on the Capitol; some cross-aisle relationships began souring far earlier in Donald Trump’s term, while others started to fray amid the 2009 rise of the conservative Tea Party. ...