[cnn-photo-caption image=http://i.cdn.turner.com/cnn/2010/POLITICS/04/08/stupak.tea.party/story.stupak.gi.jpg caption="U.S. Rep. Bart Stupak, center, gained attention for his role in helping House Democrats pass health care legislation." width=300 height=169]
Dana Bash | BIO
CNN Political Unit
The Tea Party Express is predicting large crowds for five events Thursday and Friday aimed at unseating U.S. Rep. Bart Stupak, D-Michigan.
The events are being held in Michigan's Upper Peninsula, which is part of the Democrat's large and rural First Congressional District.
The rallies come as sources said the top two House Democrats called Stupak to urge him to stay in Congress. A Stupak spokeswoman didn't confirm or deny rumors that the lawmaker is considering retiring from Congress.
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