Tea leaves on the U.S. Senate race

The Democratic primary for U.S. Senate in 2010 is wide open.

At this point, any of the major Democratic officials in the state could announce a campaign and quickly move to front-runner status. Or one of the lesser-known candidates could jump in and begin making waves.

Still, a few things are becoming evident:

DSCC THINKING BIG: The Democratic Senatorial Campaign Committee is looking for a brand name. Despite its success in 2008 with a state senator with low name recognition, the Washington crowd is looking for a Congressman or current or former statewide official.

WHO'S IN, WHO'S OUT: U.S. Reps. Bob Etheridge and Brad Miller, Lt. Gov. Walter Dalton and state Rep. Grier Martin seem increasingly unlikely. Washington types like Rep. Heath Shuler, who's not ruling it out, while Rep. Mike McIntyre is interested.

STILL UNKNOWN: A few other potential candidates have not been heard from: Raleigh mayor Charles Meeker, former state Treasurer Richard Moore, state legislator Dan Blue, and the rest of this extensive list. (Update: Meeker's out, Blue's answer is ambiguous.)

PRIMARY COMPETITION: Durham attorney Kenneth Lewis seems increasingly likely to run in the primary. Former state senator Cal Cunningham may also make a run for it. Either candidate would lead to a more interesting primary than Democrats faced in 2008.

By picking a female candidate with pro-business credentials and strong North Carolina ties, Democrats neutralized some of Sen. Elizabeth Dole's advantages and set up a contrast between the native and the so-called carpetbagger.

It's not yet clear what their strategy would be against Burr. But here are a few qualities to consider: Son of a Presbyterian minister, college football player, Triad native, and conservative with a record on veterans' issues.