Moore blasts Dhillon for mocking council votes that don’t go his way and “showing a lack of respect and integrity in the decision-making processes of council.”

Jeffrey won the mayor’s chair in 2014 with a daunting mandate: Clean up perceived corruption, get the city’s finances in order, and restore the public’s trust in their elected officials at city hall by being more transparent and accountable.

While she has won praise for slashing her own salary by $50,000 upon taking office and calling for an end to the police practice of street checks, Jeffrey’s approach to governing has largely worked against her.

She built a reputation early on for being a shrewd tactician , and has drawn criticism for openly ridiculing her councillors for the decisions they make (most notably the vote to kill the proposed $1.6 billion Hurontario-Main Light Rail Transit Line).

The mayor now finds herself alienated from some of her council. She can often count on only two, maybe three votes, to favour her agenda.

Her supporters argue the discord on council rests firmly in the lap of a group of councillors resistant to change.

Of the 11 members on council , only four veterans returned.

In contrast, Jeffrey’s critics counter this latest email correspondence is yet another indictment of her inability to lead.

Councillors told The Guardian that the proposal to hold such a meeting wasn’t even Jeffrey’s idea.

“Frankly, I believe (the workshop) will be a waste of time as long as the mayor openly criticizes council decisions to the public,” stated regional Coun. John Sprovieri, to which Jeffrey replied:

"Coun. Sprovieri cannot separate legitimate criticism from personal attacks. We should be able to respect each other’s opinions and agree to disagree without making it personal,” said Jeffrey, noting it was her hope that all of council would participate in the workshop so as to “clear the air” and “move this council and this city forward.”

Jeffrey’s brief tenure as Brampton’s chief politician has been bogged down by infighting and petty squabbles .

With the municipal election still more than two years away, and a host of issues to tackle ­­– from sinking finances, deteriorating infrastructure and rising staffing costs, to landing a university, expanding transit services and a $28.5 million lawsuit against the city still unresolved – council observers contend Jeffrey has little choice but to extend a hand of peace to rivals.

In less than a month, Harry Schlange will officially step in as CAO and set about resuscitating Brampton’s beleaguered bureaucratic class and getting city business back on track.

But the odds of a peace summit actually taking place might be slim at best after councillors made their animosity toward one another very clear.

In an interview with The Guardian, Jeffrey said a key mandate this term is “to raise the bar for Brampton,” including working to ensure elected officials conduct their business respectfully.

“We are airing our dirty laundry in public which isn’t very helpful,” Jeffrey said.

The Guardian has compiled a list that demonstrates the animosity that's unfolded on Brampton council:

• For two consecutive meetings in late April, a dispute over a deleted Twitter account shared by Miles and city councillor Pat Fortini dominated city business.

• During the HMLRT debate last year, councillors took part in a facilitation process that many, including the person hired at a cost of $75,000 to mediate the discussion, argued was a futile exercise when it was clear early on that no one on council was going to budge on their position.

• Hours after Jeffrey surprised everyone by voting on Oct. 28, 2015 to kill an LRT route she had backed for months, councillors refused to allow her to reverse her vote even though the change was mainly symbolic and wouldn’t have changed the outcome.

• In August 2015, Jeffrey filed a complaint with Integrity Commissioner Robert Swayze accusing regional Coun. John Sprovieri of leaking sensitive information to The Guardian about the Southwest Quadrant renewal project and office space the city rents at 8 Nelson St.

• Last December, The Guardian revealed two councillors moved out of their assigned offices and set up in other areas of the fourth floor of city hall amid accusations of bullying and intimidation.