Recent polls suggest the Conservatives could lose some of their current 11 seats on the Assembly with Labour emerging as the biggest party.
If these predictions proved true, smaller parties such as the Greens could help form a blocking majority against the Mayor’s budget.
Jones, who is standing as Mayor and for re-election to the Assembly, says: “The Greens have consistently been able to play a leading role in determining policy at City Hall, and by voting Green on the Assembly in May London can help ensure whoever is Mayor next year is best held to account.
“The introduction of civil partnerships and the London Living Wage, the prevention of the Thames Gateway Bridge and massive increases in the cycling budget and provision all demonstrate that the Greens are able to set aside personality politics and old rivalries to win real achievements for Londoners.
“Whatever the results in the Mayoral and Assembly elections, we will use our influence next term to win real victories for Londoners on the issues that affect them most: making fares affordable, tackling the air pollution that claims so many lives, restoring trust in the police and making London fairer and more equal for everyone.”
Candidates for Mayor include Jenny Jones (Green party), Ken Livingstone (Labour), Lawrence Webb (UKIP) Boris Johnson (Conservative) and Brian Paddick (Liberal Democrat). A full list of candidates can be found here.