Every two years, the even- and odd-numbered districts in the Tennessee State Senate take turns being up for election. There are 33 total seats, which means that either 16 or 17 seats are up each time. This year, the 17 odd-numbered seats are being filled. A Senate term is four years.

The following are contested Democratic primary elections for August 5.

District 17

Aubrey T. Givens

• Bio: Attorney
• Website: http://www.aubreygivens.com/
• Social media: Facebook

Sam Hatcher

• Bio: Newspaper publisher; National Guard
• Website: http://www.samhatcher.com/
• Social media: Facebook

George McDonald

• Bio: Farmer
• Website: http://www.georgemcdonald2010.com/
• Social media: Facebook, Twitter, YouTube

District 21

Douglas Henry – incumbent since 1971

• Bio: Attorney
• Political experience: House of Representatives, 1955-57
• Website: http://www.senatordouglashenry.com/
• Social media: Facebook, The Twitter, YouTube

Jeff Yarbro

• Bio: Attorney
• Website: http://www.yarbro2010.com/
• Social media: Facebook, Flickr, Twitter, YouTube

If you have information to contribute about any of these candidates, please leave a comment below. Comments are moderated.