A corner of Chevy Chase is becoming something of a message board for a seething Democratic city with little other recourse.

D.C. has started cracking down on drivers making U-turns through the Pennsylvania Avenue bike lanes. Good intentions, though, have been somewhat derailed by questionable implementation.

A new sign on the Key Bridge welcoming drivers to the District was vandalized over the weekend, treating commuters to an anti-war message this morning.

For years the crossing the Key Bridge northbound had been a relatively understated affair — at no point were you welcomed to the District, as you would be coming into the city from a number of other directions. (Or as you’re welcomed to Virginia crossing southbound.)

DCist contributor Mehan Jayasuriya reports: “Breaking burger-related news — the sign at the Dupont Shake Shack is being hoisted up, as we speak.”

Speaking of locations near Nationals Park and DDOT, either this sign captured by Flickr user fedward at 7th and M Streets SE misspelled “corner,” or the amount of land that the transportation agency holds parking authority over just got a whole lot bigger….

We know. After the D.C. quarter debacle, we’re getting the message — voting rights is just too controversial an issue for the American public. According to the Post, the owners of the Washington Nationals feel that an electronic billboard listing the amount of federal taxes paid by District residents that the D.C. Council wants to place in the new ballpark is too “political” and “controversial” for baseball fans. As you may recall, late last year…