Here's the part you can reprint in a family newspaper: "Bob Casey is not entirely about Bob Casey," says Savage, because "if the Democrats control the Senate in part because Casey is there, it's going to empower a lot of Democratic politicians who I agree with, more than I agree with Casey on issues like choice and gay marriage and other social values issues. So I'm excited about electing Casey because I'm excited about Patrick Leahy being head of the Judiciary Committee. I'm excited about electing Casey because I'm excited about Hillary Clinton having more power than she does now."

Here's the one thing I know about Bob Casey: I don't know much about what he would actually do, because that's the way Bob Casey likes to run his campaign.

Here's the one thing I know about Rick Santorum: Nobody in America has earned the undying hatred of the hard left for his courage in standing up and fighting for basic American values, whether it's the value of every single human life, or the importance of marriage as the union of husband and wife. (Full disclosure: A fund-raising consultant for the small nonprofit I run once asked Rick Santorum to sign a fund-raising letter. We raised $8,312 on expenses of $15,752, which means Rick Santorum once cost my organization $7,440.)

The undying hatred of people with Dan Savage's views is a badge of honor for Santorum personally, whatever happens in this election, but it is also the real reason for the millions of dollars flowing into Bob Casey's campaign war chest: If Rick Santorum loses, nobody in Washington will ever want to lead on the gay marriage issue again.

Gay marriage advocates know this. The people of Pennsylvania deserve to know it too.