AUSTIN, Texas – After five days of early voting, several primary runoff elections are kicking off on Tuesday in Texas.

Runoffs happen if no candidate in a primary receives at least 50 percent of the votes. The top two candidates will then face off.

Democrats will get the chance to vote for their gubernatorial candidate, either Lupe Valdez or Andrew White. The candidates clashed at a debate on May 11 discussing topics from abortion to gun rights and immigration. Valdez and White are both vying for their party’s nomination to face off against Republican Governor Greg Abbott.

District 46 will vote on its House candidate Democrats Sheryl Cole and Jose "Chito" Vela. Vela, an immigration attorney and former Austin Planning Commission member is up against former Austin City Council member and mayor pro tem, Sheryl Cole.

For U.S. Rep. Lamar Smith's 21st Congressional District seat— Republicans will vote for either Chip Roy or Matt McCall. Democrats will choose between Mary Street Wilson and Joseph Kopser.

In House District 8, Republicans will choose between Thomas McNutt and Cody Harris.

Some voting experts say they won’t be surprised if relatively few voters participate in this election.

"In the end, these are really, extremely low-turnout affairs, and what is going to drive one race or another is most likely going to be a locally-determined factor," said Joshua Blank, Manager of Polling and Research at the Texas Politics Project at University of Texas Austin.

Blank said the biggest challenge for Valdez, White, and all the other runoff candidates might still just be getting voters to know who they are.

Polls are open from 7 a.m. to 7 p.m.

Spectrum News will have the latest on the election results staring at 7 p.m.Click here for background on the most important races and check back regularly after 7 p.m. on Election Day for results.