Christopher Jon Bjerknes
I suggest Donald Trump challenge Jeb Bush to a debate, one on one. Scott Walker has entered the race riding on Trump's thunder. Trump would benefit by giving us something to look forward to, something he can hype like a championship fight.
I suggest he challenge Bush and frame it as an opportunity for democracy to function as it should with a free exchange of ideas. Let the voters have the chance to choose the candidate who best represents them. Let Bush stand up to, or back down from, the fight.