Russia has recently unveiled several new nuclear-capable and nuclear-powered weapons that President Vladimir Putin says will be "important for the entire 21st century." CNN's Fred Pleitgen breaks down their capabilities. | CNN

Gov. Gavin Newsom held a rally in Houston, Texas, energizing Democrats after a successful off-year election. CNN's Jake Tapper was on the ground and explains why this event is a sign that the 2028 presidential campaign has unofficially begun. | CNN