By CNN's Wolf Blitzer
(CNN) – I remember interviewing Hillary Clinton near the end of her very grueling run for the Democratic presidential nomination in 2008. She had been on the campaign trail for a long time. She had worked really hard, especially in the final months as Barack Obama was challenging her. You could see the strain she was under.
During those tough times, her daughter, Chelsea, suddenly had become very visible on the campaign trail. She spoke for her mother all the time, often introducing her at campaign events, and did very well. You could see how proud Hillary Clinton was.
And indeed, during that interview, when I asked Mrs. Clinton how she felt about Chelsea’s campaigning, she started to get emotional. I could see some tears. It was a very real moment, and one I won’t forget.
I see similar moments on the current campaign trail covering these Republican candidates. They, too, are blessed with wonderful families.
There are lots of children out there working for their dads.
Just check out Mitt Romney’s sons, Jon Huntsman’s daughters, Rick Santorum’s kids, Newt Gingrich’s daughters and Ron Paul’s son, U.S. Sen. Rand Paul of Kentucky.
They all have one thing in common: they clearly love their fathers.
They also have proven to be secret weapons.
President Obama, too, has wonderful daughters. But they are too young right now to start campaigning.
That will no doubt put a lot of pressure on the first lady to become very visible out there on the campaign trail. And I suspect she will do whatever she can to help her husband get re-elected.