great greeted with showers this early tuesday morning. i m harry smith. i m erica hill. maggie rodriguez is on assignment. david hartley killed on a jet ski out with his wife on this lake which span it is border with texas and mexico. she spent a second day in questioning with mexican authorities now so we ll hear more about what went on there and hoping all of this could do for her. first, though the crucial midterm elections. just two weeks away and some interesting numbers of a new poll by cbs news. the news is not so great for president obama and the democrats. cbs news senior white house correspondent bill plante has the details. good morning, bill. reporter: good morning, harry. the poll was taken among people who voted for president obama in 2008. they still like him a lot but that doesn t mean they ll vote for democrats this year. only two thirds of democrats who voted for president obama in 2008 say that they ll vote for a democrat in 2010. the biggest erosion