After a recent Thompson speech in Iowa a member of the audience called out: "Kill the terrorists, secure the border, and give me back my freedom." Thompson replied "you just summed up my whole speech."
No other candidate could have carried off that quip because no other candidate is capable of delivering a convincing speech focused on those powerful themes.
I have not yet made a decision about who I will vote for in the primary - just those I know I won't vote for - so I try to learn as much about the other candidates as I can. I recommend you do the same. Go read the whole thing.