The two Democratic contenders are both holding strong among the most reliable members of their base in Tuesday's presidential primary in Pennsylvania, exit polls of CNN show.
Frontrunner Senator Barrack Obama of the Illinois is winning 92 percent of black voters, among his highest margin to date in that demographic.
Meanwhile, Senator Hillary Clinton of New York is winning among voters 65 and over by a 23 point margin, 61 to 38 percent.Both candidates have held on to their base, a sign the trench warfare of the last four months could continue.
As has been the case in past primary states, supporters of Obama and Clinton part ways when it comes to what qualities they most want in a president.Among Hillary's supporters in Pennsylvania, 47 percent say a candidate's experience matters most, compared to 27 percent who name a candidate's ability to bring about change.
Fourteen percent say they want a candidate who "cares about people."The numbers are essentially reversed when it comes to Obama supporters.Nearly 75 percent say they want a candidate who can bring about change, 14 percent want a candidate who cares about people.Only 3 percent of Obama supporters name a candidate's experience as most important to their vote.
Generally speaking, the demographic factors of Pennsylvania are favorable to Clinton and that put her in a good position to win.The state have higher percentage of older, white and female population than that of America as a whole. Past primaries show she always win heavily in these groups.