I'm pointing out that they had the three debate timestamps, and then they added Trump's "lewd comments revealed" timestamp in isolation. No mention of Hillary's emails, or her pneumonia, or anything until just the last few days.
http://graphics.latimes.com/usc-presidential-poll-dashboard/
clearly shows "Clinton's pneumonia revealed", "Clinton email FBI announcement". At worst this is an iframe resizing issue, not "mainstream media bias".