wolf blitzer is off today. i'm jessica yellin. you are in "the situation room." the biggest names expected to run in 2016 are in the spotlight tonight. all for a very different reason. hillary clinton tells us where she is headed and what she is doi doing. she's ending her break to return to the domestic issue that first defined her career, early childhood education. jeb bush sticks his foot in it on immigration. marco rubio tilts to the right, potentially at the cost of his center. and right now, chris christie prepares to show up with bill clinton. that is the second big democrat that he is cozying up to in a month. and by the way, he is passing up a big conservative gathering to do it. we will get more now from cnn's erin mcpike at the gathering with chris christie and bill clinton. and erin, are they due to take