Gareth Bacon: Khan is still passing the buck

Whether it is housing, transport or crime – even the Trump blimp – he is shameless in trying to dodge accountability.

Crime is rising again. Howard’s remarkable legacy is at risk.

After Brexit has been concluded this will be a key challenge for the Conservatives as the Party of law and order. Political correctness must not get in the way of effective policing.

Stephanie Reeves: The London Assembly selections give the Conservatives the chance to champion women

Let’s use this first step to provide a more equal and representative voice for our city. The Tory Reform Group wants to help.

Nickie Aiken: The Conservatives can start winning in London again

While Londoners want action, the Labour Mayor offers excuses. Shaun Bailey will offer a credible challenge.

Bailey is chosen as the Conservative candidate for Mayor of London

Boff was the runner up. The election takes place in May 2020.

Joe Carlebach: With crime spiralling out of control, is it time for a Police and Crime Commissioner for London?

At least then we might see some dedicated focus on this issue. A lot of supposedly “minor” offences are not investigated at all.

Who is endorsing whom to be the Conservative candidate for Mayor of London?

As voting opens all three contenders have secured the backing from high profile figures – including council leaders and cabinet members.

Paul Scully: Conservative members in London still have time to vote for our Mayoral candidate

All three are great campaigners and proven grassroots workers across London. Winning is a challenge but the prize is definitely up for grabs.

Khan is hanging around City Hall, waiting for the Labour leadership to turn up. London can do better.

I’ve already voted for Boff as the Conservative candidate. Sometimes I suspect that he knows even more about the capital than Peter Ackroyd.

Justine Greening: Why I’m backing Joy Morrissey to be the next Mayor of London

Through the Centre for Social Justice, she has put her time into actively working on the difficult issues we also face such as homelessness.

How to measure – and vanquish – poverty? A new answer to an old problem.

Philippa Stroud’s new Social Metrics Commission hopes to bring light to murky statistical waters. But can numbers ever truly neutralise politics?

Bob Seely: Yes, Brexit and leadership are important. But so’s everything else. Here are some ideas for the future.

Scrap HS2. Integrate social care. Abolish NI. Reverse police cuts. Consider a new Bill of Rights. And much, much more.

Penny Mordaunt: London has some serious problems. It needs a serious candidate – namely, Andrew Boff.

I’m backing him to be the next Mayor of London. He will work tirelessly to deliver and he will lead.

Greg Hands: Bailey is the right person to win in 2020 – and turn London blue again

He has the ideas to take the Capital forward. One great example is his plan to put one thousand extra police officers on the streets by cutting waste in City Hall.

Shaun Bailey: Khan has failed on crime, I will show the leadership London deserves

I would put an extra thousand police officers back on the streets by cutting City Hall waste – and I would use new technology to make policing more efficient.