Cruz stays positive in Iowa

"BOONE, Iowa — With less than a month until Iowa kicks off presidential primary voting, direct attacks among Republican candidates have swelled into a messy food fight — but one leading candidate has remained conspicuously on the sidelines.
“I’m going to keep my focus on a positive, optimistic message for this country,” Ted Cruz told reporters here on Monday before kicking off a six-day bus tour that will take him to 28 counties in the Hawkeye State." Politico