Love is in the air at the Nationals championship parade

One future groom couldn't wait till the start of the parade to pop the question. ( Twitter/@KG_Dowd )

The Washington Nationals World Series championship parade hasn't even started yet, but one couple is already engaged. 

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A bystander shot this video of the proposal Saturday afternoon downtown:

Fox 5 is working to catch up with the future betrothed. You can catch full coverage of the parade starting at 2 p.m. on Fox 5. 

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