Mike O’Brien last week became the fourth Seattle City Council incumbent to bow out of a re-election bid later this year.

The move means that a majority of the seven district seats up for grabs in November will be filled by members new to the nine-member council. The two citywide seats will be contested in 2021.

O’Brien joins district council members Rob Johnson, Sally Bagshaw and Bruce Harrell who already had announced that they would not seek re-election.

O’Brien, who has been elected three times, told The Seattle Times that recent polling showed he would be in a tough race this year. An article referred to O’Brien’s unpopular stands on homeless camping and housing density in Seattle.

Washington Retail has established the Retail Industry Coalition of Seattle to engage with the council on matters that affect retailers. WR is closely monitoring Seattle council campaigns in order to determine which candidates would best support the city’s network of retail businesses.