Barack Obama promised that "within one year of becoming president, the entire White House fleet will be converted to plug-ins as security permits." It's coming up on a year and ... it hasn't happened. But the White House says it's still trying.
 
First, a little background on green cars. PolitiFact initially wrote a headline for this promise that said "Require hybrid fleet at the White House," but we've changed it because that terminology was actually a bit misleading.
 
Hybrids are cars that have an electric motor and rechargable batteries in addition to a regular gasoline engine, a combination that makes them much more fuel efficient. While hybrids are a relatively new commercial technology, there's already a well-established market, with most carmakers offering a variety of hybrid models, from coupes to SUVs. Toyota alone has sold well over 1 million Priuses worldwide.
 
But Obama said he would convert the fleet to "plug-ins," which are a subset of hybrids that can be plugged into ordinary household electricity and operate without using gasoline at all (though they do have a gasoline engine as a backup). This market is far less developed; the most highly anticipated model is the Chevy Volt, which won't even be available until at least 2010. Toyota recently announced that it would begin making a Prius plug-in available in early 2010.
 
There's also a category of pure plug-in electric cars without gasoline backup engines, but many of these are not yet in production or are specialized vehicles that aren't designed for the rigors of transporting and protecting the president (such as the Tesla Roadster, a $100,000 sports car that's already being sold).
 
The bottom line is that Obama seems to have gotten way ahead of the marketplace by setting a one-year deadline. Given the state of the technology and the commercial market -- not to mention the special security requirements of carrying the president and foreign leaders -- guaranteeing an all plug-in fleet by Jan. 20, 2010, was almost a nonstarter from the moment he made the promise.
 
However, the White House has not given up on the idea of assembling a greener fleet.
 
"We are currently in the process of updating the fleet and we"re making every effort to make as much of the fleet as green as possible," a White House official told PolitiFact. "The Environmental Protection Agency has been involved in these conversations. Of course, there are significant security restrictions that limit the green options for some of the vehicles in the fleet, but we are working to ensure that the fleet is as energy efficient as possible.”
 
We can't call this a Promise Broken because Obama hasn't been in office for a year yet. On the other hand, despite the White House's continuing efforts, Obama's pledge -- to implement an all-plug-in fleet, with up-to-snuff performance and security standards, in just a year -- was so unrealistic as to make it virtually impossible to fulfill. So we'll reach for an automotive term and call this promise Stalled.