Now, when I broke the story on teens’ tanning habits, I didn’t go all over telling everyone, “Hey, I broke the story on teens’ tanning habits.”

However, since Lawrence O’Donnell — MSNBC’s senior political analyst — broke the story about Karl Rove being the source that Matt Cooper has been protecting for two years, he’s definitely had no shame about tooting his own horn.

In his July 2 Huffington Post blog, he trumpeted:

I revealed in yesterday’s taping of the McLaughlin Group that Time magazine’s emails will reveal that Karl Rove was Matt Cooper’s source. I have known this for months but didn’t want to say it at a time that would risk me getting dragged into the grand jury… Since I revealed the big scoop, I have had it reconfirmed by yet another highly authoritative source. Too many people know this. It should break wide open this week. I know Newsweek is working on an ‘It’s Rove!’ story and will probably break it tomorrow.

On July 3, he blogged:

On Friday, I broke the story that the e-mails that Time turned over to the prosecutor that day reveal that Karl Rove is the source Matt Cooper is protecting.

Yesterday, he came up with this angle:

Karl Rove’s lawyer, Robert Luskin, had his holiday weekend ruined on Friday when I broke the story that the e-mails that Time delivered to the special prosecutor that afternoon reveal that Karl Rove is the source Matt Cooper has been protecting for two years.

Now, that’s a man who’s willing to take credit for his work.