Amid calls for expulsion Rep. Tony Gonzales says he'll 'retire' Tuesday

San Antonio Congressman Tony Gonzales says he'll "retire" Tuesday amid sexual misconduct allegations and an alleged affair with a staffer. He hasn't said whether it would take effect immediately, as bipartisan calls for expulsion build. The House Ethics Committee is investigating, and House rules prohibit members from having sexual relationships with employees. If he steps down, Gov. Greg Abbott could call a special election to fill the seat.