[cnn-photo-caption image=http://i.cdn.turner.com/cnn/2008/images/03/04/senior.jpg caption="A senior citizen casts her vote in Bloomdale, Ohio."]
(CNN) - One of the statistics in the exit polls I wanted to watch out for was the senior vote - Clinton needs to win big among this group to stay competitive with Obama, and tonight's exit polls show she is doing just that.
The New York senator only won two age groups in Texas and Ohio (50-64 and 65+) - but together those age groups make up roughly 45 percent of the electorate in both states.
In Ohio, she's winning the 50-64 bloc by 20 points and the 65+ vote by 40 points. In Texas, her margins of victory in those blocs are 11 points and 30 points respectively. It's imperative Clinton's support among these groups hold to counterbalance Obama's overwhelming popularity among young voters and his edge with those who are middle-aged.
–CNN Senior Political Analyst Bill Schneider