Pennsylvania Senator Bob Casey announced today that he is endorsing Barack Obama.
Here's an excerpt from a Yahoo news story on the subject:
Casey said enthusiasm for Obama by family members — including his four
daughters — was part of his reason for endorsing now. He said he did a
lot of thinking over the Easter holiday.
"When people you love and people you respect in your family or
community are not just supportive of him, but incredibly enthusiastic
about his candidacy, that has had an impact on my thinking and the way
I approach this," he said. "I didn't think that at this point in our
history with the stakes so high that I could stay on the sidelines once
I had made a decision about who, the person I'd vote for."