The radio ad mentions his younger brother, Ken Salazar, five times.
Ken Salazar is a former Colorado senator who is now the interior secretary. John Salazar represents the state's 3rd Congressional District and is being challenged by Republican state lawmaker Scott Tipton.
The ad is paid for by Americans United for Life, a Washington-based anti-abortion group, which tells The Daily Sentinel that a corrected ad will be aired.
The group criticizes Salazar for backing health care reform, which it says will undo a ban on taxpayer-funded abortions. President Barack Obama signed an executive order to affirm the ban.
Information from: The Daily Sentinel