Disgraced lobbyist Jack Abramoff has been making the rounds lately. He's out of prison. He has a new book. He's in a talkative mood. So I figured it was a good time to ask him about the business of lobbying — not about what he did that was illegal, but the ordinary, legal stuff.

The firm he worked for was called Greenberg Traurig. I chose a year at random when Abramoff was working there, and picked a client who I hoped would be fairly typical. I chose Tyco International, a multinational corporation that in 2003 gave Abramoff's firm $1.3 million.

With just four full days to go before Tuesday's crucial Florida primary, the four remaining major Republican presidential candidates gather tonight for another debate.

This time the setting is the University of North Florida in Jacksonville. The host network is CNN. The network's Wolf Blitzer will moderate. The other sponsors are the Republican Party of Florida and the Hispanic Leadership Network, a center-right advocacy group.

If you're a college athlete who's talented enough to play a Division I sport, the NCAA requires that you get a blood test to see if you have sickle cell trait.

People with sickle cell trait carry one copy of a gene that can lead to an abnormal type of hemoglobin, the oxygen-carrying molecule in red blood cells. (Two copies of the gene lead to sickle cell disease.)

President Obama has made the case that his administration spoke out forcefully when Iran's government used deadly force to suppress protests in the spring of 2009.

In the race for the Republican presidential nomination, former House Speaker Newt Gingrich continues to fend off accusations that he should wear the scarlet "L" — for "lobbyist." This week, he released two of his consulting contracts and said they didn't call for any lobbying.

Like many other former lawmakers, Gingrich was advocating for paying clients, while not officially registering as a lobbyist.

The two contracts disclosed this week came from Gingrich's work for Freddie Mac, the mortgage giant. Between 1999 and 2007, Freddie Mac paid his firm $1.6 million.