Carson’s book tour hiatus spurs doubts on campaign motive

Republican presidential candidate and retired neurosurgeon Ben Carson has suspended his campaign to promote a new book, a move that has pundits wondering whether his poll numbers will suffer or if his real purpose in running is to boost his public profile.
Carson currently occupies second place in a crowded GOP field, just five percentage points behind leader Donald Trump, according to the latest national averages compiled by Real Clear Politics. The Baltimore doctor has closed the gap with Trump during the last several weeks, and soared above his rivals in collecting more than $20 million for his campaign between July 1 and Sept. 30. Will halting campaign appearances until Oct. 28, the day of the next debate, to promote his "A More Perfect Union" book wind up hurting him?