Another Democrat won't be returning to Congress in 2015: freshman Rep. Gloria Negrete McLeod (D-Calif.) has opted to run for county supervisor rather than reelection.

"I have chosen to seek election to the San Bernardino County Board of Supervisors and not reelection to Congress," Negrete McLeod said in a statment. "This was a decision not made lightly. However my desire to represent this community locally, where I have lived for more than forty years, and where I have long served as an elected official, won out."

Negrete McLeod, 72, won her lone term in Congress in 2012 by defeating Rep. Joe Baca (D-Calif.). She will be running for supervisor in San Bernardino County.

Her district went 67 percent for President Obama in 2012, meaning Democrats are expected to hold it.

Negrete McLeod is the second House member to run for another office that isn't governor or Senate. Rep. Tim Griffin (R-Ark.) announced last week that he would run for lieutenant governor.

Another 20 House members are retiring without seeking another office -- nine Democrats and 11 Republicans.

Updated at 3:03 p.m.