Senators Hillary Clinton and Barack Obama roll out new commercials
attacking one another in preparation for a close fight in Tuesday's
Pennsylvania primary.

PENNSYLVANIA, UNITED STATES (APRIL 20, 2008) NBC -

With two days to go before a crucial U.S. presidential vote,
Democrats Barack Obama and Hillary Clinton campaigned through Pennsylvania on
Sunday (April 20, 2008) as the former first lady got the support of one of her
fiercest critics.
    With less than 48 hours to go before the polls open, the two campaigned
vigorously around the state, both claiming the other was conducting a negative
campaign.
    At a rally in Bethlehem, Clinton said it was Obama who had gone
negative since their Philadelphia debate last week.
    "He has sent out mailers, he has run ads misrepresenting what I
have proposed," she said "The last thing we need is somebody
spending as much money as he has downgrading universal healthcare."
    Both candidates have unveiled new commercials aimed at one another. In
one Clinton campaign commercial an announcer says, "There are more and
more questions about Barack Obama."    
    The Obama campaign commercial featured a photo of Clinton with a
scrolling list of companies the campaign claims made major donations to the
Clinton campaign. 
    Tuesday's primary to help pick the Democratic candidate against
Republican John McCain in November's presidential election is the first
contest in six weeks and has become a major test in the race to the party's
nomination.
    Clinton, a New York senator, leads in state polls but Obama, an
Illinois senator, has cut into her one-time double-digit lead in recent weeks.

    Clinton, who with her husband former President Bill Clinton was the
subjects of many conservative investigations when they first entered the White
House in 1993, was endorsed on Sunday by the Pittsburgh Tribune-Review whose
publisher, Richard Mellon Scaife, funded many of those probes.
    The Tribune-Review mentioned Clinton's record and experience in making
the choice in the Democratic vote, but also cited her willingness to sit down
with the newspaper's editorial board. 
    Ahead of Tuesday's (April 22, 2008) Pennsylvania vote, most analysts
believed Clinton would win but the size of a victory has become the focus of
both campaigns.