If you're looking for something to do on the 4th of July, there are several things to do in the area which would also include helping some of the local Democratic candidates. I have based this list off of information I received from the Springfield Magisterial District Committee as well as a few other sources.
Fairfax City Parade
When: July 4. Line up at 9 am.
Where: Meet in the City of Fairfax, in the large lot near the Fairfax County Courthouse. (Enter the line-up area via Main Street and Judicial Drive. Turn left on Page Avenue and follow the road to the large parking lot.)
Lorton Parade (with candidate Greg Werkheiser)
When: July 4. Line up at 10 am. The parade begins at 11 am
Where: Meet behind the Lorton Firehouse, 7701 Armistead Rd., Lorton
RVSP at http://gregfordelegate.com/july4
Orange Hunt Parade (with Del. Dave Marsden)
When: July 4. Line up at 12:30 pm. The parade begins at 1 pm
Where: Meet at Hunt Valley Elementary School, 7101 Sydenstricker Rd., Springfield
RVSP to Missy at email@example.com
Clifton Parade (with Sen. George Barker)
When: July 4. Line up at 3:30 pm. The parade begins at 4 pm
Where: Meet at the corner of Dell & Main Streets, Clifton
Questions? Contact firstname.lastname@example.org
Also, the Town of Vienna holds a festival every 4th of July at its community center which usually attracts a good sized crowd and several elected officials. Especially considering that there will be a good race in the 35th House of Delegates race this year which covers that area, I imagine folks will be paying attention to this festival.
If you have other plans for the 4th, you should also remember that there will be a big picnic on July 5th which will feature a lot of the Democrats running for the House of Delegates. The picnic will be held at Fort Hunt Park from 1pm - 4pm, but there will also be a service action from 10am - 1pm for those who might want to give a little extra back to our community.