A Republican congressman vying to unseat Democratic Sen. Mary LandrieuMary Loretta LandrieuA decade of making a difference: Senate Caucus on Foster Youth Congress needs to work to combat the poverty, abuse and neglect issues that children face Dems wrestle over how to vote on ‘Green New Deal’ MORE announced Thursday that his unmarried teen daughter is pregnant, according to multiple reports.

"Earlier this year, Laura and I learned we will become grandparents this summer," Rep. Bill CassidyWilliam (Bill) Morgan CassidyThe Hill's Morning Report — AG Barr, GOP senators try to rein Trump in Overnight Health Care: Nevada union won't endorse before caucuses after 'Medicare for All' scrap | McConnell tees up votes on two abortion bills | CDC confirms 15th US coronavirus case Overnight Defense: Senate votes to rein in Trump war powers on Iran | Pentagon shifting .8B to border wall | US, Taliban negotiate seven-day 'reduction in violence' MORE, a medical doctor from Baton Rouge, said in a statement to NOLA.com/The Times-Picayune late Thursday.

ADVERTISEMENT

"Our children have been the greatest blessing of our lives and we welcome our grandchild as a joyous addition to our family," he continued. "Our daughter now faces a more challenging future than her peers. She has our unconditional love and support."

The announcement comes as Cassidy is considered the GOP leading contender challenging Landrieu in a closely-watched midterm race.

Landrieu is one of the most vulnerable Democrats running for reelection.

Cassidy's daughter is a rising senior at a high school in Baton Rouge.