Is there Twitter trouble brewing in the McCain family? 

We're just joking, but we did notice that after Meghan McCain tweeted that it was her birthday today, her father Sen. John McCain (R-Ariz.) tweeted some birthday wishes her way:

I'm 25 today!! going to Vegas. I swear on my twitter account Im gonna try to keep my impulsive nature in check - cause, well, u all know ;-)

Happy Birthday Meghan, I'm proud of you!!

But McCain never replied to her father even though he tweeted nearly two hours ago. Maybe it's because he didn't inclue her Twitter handle @McCainBlogette in the message.

Or maybe she is just having too much fun.