Former Rep. Dina Titus (D-Nev.) will run for a newly drawn, Las Vegas-based seat and pass up a rematch against Rep. Joe Heck (R-Nev.), who beat her by a few thousand votes in 2010, according to the Las Vegas Review-Journal.

The race will set up a contested primary against rising Nevada state Sen. Ruben Kihuen, a Hispanic lawmaker in a district that is heavily Latino. Whoever wins the primary will be a near-lock for reelection in the overwhelmingly Democratic district.

When reached by phone, Titus declined to confirm or deny the report. "We haven't announced, there's been some speculation about it but we'll make all of our plans clear on Thursday," she told The Hill.  "I'll give all of those numbers and details then."

Titus's upcoming decision will come as Nevada inches towards having its congressional map in place. The state is adding a House seat, and while the newly drawn map still needs to be approved by the state's Supreme Court, if it stands it will create a safe Las Vegas-based district that includes Titus's home.

Kihuen said last week that he would run in that district.

Titus would have likely been the strongest candidate to challenge Heck in a newly drawn suburban and exurban Las Vegas district. Her decision will make it more likely he is reelected.