Depending on the venue, it is their right (this includes both sides).
This was not a free for all venue with the questions open to any subject.
There is a time and a place for everything.
If they don't want questions, don't invite the press.
They certainly have the right not to answer, but dictating what questions can be asked of our elected leaders is bush league.
Doesn’t matter when semimojoe has a chance to support Trump haters with oh-so-reasonable sounding BS.