04.06 “Margin of Error” – Carcetti wrangles for votes as he responds to a potentially devastating smear. Norris and Greggs get a lead on the Braddock case, but end up being detoured. Omar is fingered for murder, but McNulty and Bunk suspect a frame. Randy is called out on a serious transgression, forcing him to confess to another one. Cutty figures out why Spider and Michael might have been avoiding him.
Complete episode recap is here.
Themes: the mayoral candidates attend church the Sunday before election day / the Royce campaigns photoshops a campaign ad with Carcetti / Namond and his mom have their income cut-off from the Barksdale family / politics continues to intrude on the investigation of the Braddock case (the murdered witness) / the new “special classroom” is formed / State Senator Clay Davis takes money from the Carcetti campaign then double-crosses them / Randy offers information to the Asst Principal to stay out of trouble with a rape allegation / Prez offers help to Dukie (clothes/shower) and Randy (help with the police) / Cuddy finds out why Spider has been avoiding the gym / Omar is arrested & McNulty lets him make a call / Carcetti wins the mayoral election