The candidates can impose conditions for someone that wants to host the debate.
They have NO right to demand someone host a debate.
Can't hurt.
Yes, it can. They would look like idiots, and voters would rightfully question the Republicans' alleged commitment to limited government.
Your "demands" are something I'd expect from Bernie Sanders.
That statement was VERY uncalled for. Ideas and suggestions are not out of the question for any subject, ask Einstein or Bell who was told nothing would work.
I forgive you though.