The ousted leader and deputy had supported a plan to merge Dorset's nine councils into two.
News, travel, weather and sport from across Dorset, Hampshire and the Isle of Wight.
Scrapping the chairs could save Weymouth and Portland Borough Council £5,000 a year.
Neighbours' fears over drug and alcohol centre
Dorset-born photographer led the way
Cheltenham Gold Cup favourite Thistlecrack is ruled out for the rest of the season with a slight tendon tear.
The midfielder has been inundated with good wishes on social media following his daughter's birth.
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