Looks like the day for retirements.

This one is harder to read than the North Dakota retirement. With Dorgan stepping down, a Democratic seat becomes a likely GOP takeover. By no means a lock but the GOP is stronger in ND and it is likely to be a good GOP year.

Connecticut is harder to analyze, however. On the surface it is a blue state and 2012 is likely to be a good year for the Democrats in the state with President Obama at the top of the ticket.

The Democrats also have a deeper bench (including Secretary of State Susan Bysiewicz, Rep. Chris Murphy and Rep. Joe Courtney to name a few).

For Republicans, Linda McMahon, Former Rep. Rob Simmons and 2010 Gubernatorial nominee Tom Foley are at the top of the list.

But given the generally blue nature of the state and the likely 2012 environment you still have to give this at least a Leans Democrat rating.

So on the surface, no change, a Democrat for a Democrat, at least in terms of determining control of the Senate. But Lieberman has been with the GOP on some key national security issues and the potential Democratic replacements would be more in line with the Democrats.