Good morning, Washington. There were some more primaries last night, and the magic of timezones means that even the dedicated may not yet have heard the results: Senator Obama picked up wins in Wisconsin and Hawaii, giving him a run of ten straight victories since Super Tuesday. John McCain also continued his all-but-mathematically-assured march to the Republican nomination, winning comfortable victories in Wisconsin and Washington. Next on the schedule: Ohio and Texas, which hold their primary contests in two weeks and could potentially be decisive for the Democrats.

Snow No!: The Capital Weather Gang is predicting that some wintery precipitation will begin around 10 a.m., with total accumulations measuring under an inch. It doesn’t sound like anything to get worried about, but it may make lunchtime and your evening commute less pleasant than usual.

Even More D.C. Tax Scandal News: By now you’ve read the phrase “Tax Scandal Widens” so many times that it’s probably lost all of its meaning. Unfortunately, it’s applicable yet again: the Post is reporting that the conspiracy to steal from District taxpayers is now thought to reach the $50 million mark and to date back twenty years. The article also details more of accused ringleader Harriette Walters’ outrageous spending habits.

Former Cop Testifies In Delivery Shooting: Keith Washington, the former P.G. cop who shot two furniture delivery men in his home in January 2007 and killed one of them, has begun presenting his defense. As NBC4 reports Washington says that the delivery men attacked him, and that he fired in self-defense. The prosecution has maintained that the shooting was unprovoked and in keeping with Washington’s history of aggressive outbursts — although the victim’s testimony was recently impugned by allegations of drug use.

Briefly Noted: Montgomery County aims to stop GPS thefts… Monday’s drive-by shooting was gang-related… Empty school bus involved in fatal crash in P.G. County… Police impersonator sought in Arlington… Prince William County empties rainy day fund to start up anti-illegal immigrant program…

This Day In DCist: One year ago we welcomed Tony Kornheiser back to the airwaves and watched as XM and Sirius announced they would try to merge. Two years ago Tom Sherwood was getting irritated by Ralph Nader.

Image posted to DCist Photos by Flickr user bjackrian