A Republican congressman vying to unseat Democratic Sen. Mary LandrieuMary LandrieuFive unanswered questions after Trump's upset victory Pavlich: O’Keefe a true journalist Trump’s implosion could cost GOP in Louisiana Senate race 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 Cassidy, a medical doctor from Baton Rouge, said in a statement to NOLA.com/The Times-Picayune late Thursday.
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.