Governments fall apart due to personal relationships. I suppose the chemistry of the three chairmen fell to a point where they no longer trusted one another or got along.
You listed other parties' reasons. Governments tend to collapse based following internal, not external reasons. What did the Reform Party do wrong?
I said we were too naive. We did not believe IRL could form an alliance with United Russia.
That is an external reason.
Our internal mistake was not being able to decide on a presidential candidate. The process itself was the problem. The Reform Party's candidate would probably not have been elected president had we picked one. The desire not to have a Reform president was so strong. We made a mistake in failing to pick a single candidate in spring.
My choice would have been to keep Marina Kaljurand on as foreign minister, earning the people's trust. That would have secured her with a very good election result in 2019 that would in turn have opened a path to the presidency. Siim Kallas said he wanted to be president for a single term.
The other thing was that if you already have two candidates, I would have called for an in-house election as party chairman. In a situation where the board cannot decide on a candidate, you need to have an election and let members pick one. We had ideas but we did not use them and didn't make a decision at all. We can say the prime minister failed to decide. That started a snowball that turned into an avalanche by the time it reached the valley.
You would like to be involving like Rõivas, but make decisions sooner?
Involvement does not mean you can choose not to decide. It means listening to people and their opinions. The leader needs to listen to what his people have to say and then make a decision. The leader cannot avoid making decisions.