Republican Mayra Flores scored a big win for the GOP Tuesday in a special election in South Texas to fill a U.S.  

House seat left open by an outgoing Democrat. 

Flores, who was raised with "strong conservative values" and to "always put God and family first, ...

" earned nearly 51 percent of the vote, defeating the leading Democrat in the race, Dan Sanchez, who received a little more than 43 percent. 

"This historic win will bring back God to the halls of Congress!" she wrote on Instagram Tuesday alongside an image that says, "We Won!" 

"This win is for the people who were ignored for so long!" she continued in the post. 

"This is a message that the establishment will no longer be tolerated! We have officially started the red wave!!" 

Born in Tamaulipas, Mexico, Flores immigrated to the U.S.  

when she was 6 years old and will be the first Mexican-born woman to serve in the House of Representatives. 

She's married to a U.S. Border Patrol agent, which she reportedly touted often during her campaign.