Miguel Lopez of the Los Angeles Galaxy plays the ball between Daniel Woolard and Ethan White of D.C. United June 3. (Victor Decolongon/GETTY IMAGES)

D.C. Mayor Vincent Gray. (Bill O'Leary/WASHINGTON POST)

Census data show that America's suburbs are graying rapidly. The days of young families littered across the nation's subdivisions are coming to a close as baby boomers move into retirement and stay put as they age. According to Brooking Institute demographer William Frey's report "The Uneven Aging and 'Younging' of America," this could dramatically change the political landscape in the U.S. The Post's Carol Morello explains why the typical voting concerns of suburbia are in for a shift.

Now that New York has become the sixth state to legalize same-sex marriage, the pressure is on in Maryland. The typically liberal state's gay rights advocates are leaning heavily on Democratic Gov. Martin O'Malley to play a more prominent role in pushing the issue of marriage equality among his fellow lawmakers. The Post's John Wagner reports on how the former mayor of Baltimore took a more behind-the-scenes tack to pushing the cause most recently, a different approach from New York Gov. Andrew M. Cuomo's.

One would think that a more efficient car would mean a lighter car. But over time, as vehicles have become better about gas mileage, their physical weights have continued to increase. And with a heavier car, the chance for more damage in an accident has increased. Slate's Annie Lowrey breaks down how two economists from the University of California, Berkeley tackled the questions: How much are our hefty cars costing us? And does it mean our roads are less safe?

Things could have gotten off to a better start with Davey Johnson, but last night wasn't so bad. The Nationals fell in extra innings to the Angels, not a bad result for a guy that had been out of the bigs for over a decade on the road. Needless to say, Tom Boswell is all smiles about Johnson's arrival. The Post's Adam Kilgore covers the game that featured a late-inning blast from Danny Espinosa, who set a new record for homeruns by a rookie second-baseman before the All-Star Break.

Extra Bites

• You don't want to be the one at the Independence Day cookout going on and on about what The Post's Chris Richards calls an unfulfilling new Beyonce album. Here are 15 artists to check to keep you fresh for the rest of summer.

• Hold your horses, iPhone fans: The reason the next update may be taking so long is that Apple could be prepping not one but two models for a fall launch.

• Boston has approved quiet cars for its commuter rail lines. What a novel idea!

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