Answer based on context:

Coming off their bye week, the Raiders flew to the Louisiana Superdome for a Week 6 interconference duel with the New Orleans Saints. In the first quarter, Oakland struck first as kicker Sebastian Janikowski got a 24-yard field goal. In the second quarter, the Saints took the lead as RB Reggie Bush got a 3-yard TD run, along with kicker Taylor Mehlhaff getting a 44-yard field goal. In the third quarter, the Saints increased their lead as QB Drew Brees completed an 8-yard TD pass to RB Aaron Stecker and a 15-yard TD pass to Bush. In the fourth quarter, New Orleans closed the game out with Mehlhaff nailing a 33-yard field goal, along with Brees completing a 2-yard TD pass to TE Mark Campbell.

In which quarter did Drew Brees throw his shortest touchdown pass?
fourth