Republican presidential candidate and Texas Sen. Ted Cruz is pushing back against President Barack Obama for making fun of the Republican field after the third Republican debate last week. Obama ridiculed the pack for complaining about the CNBC moderators during the debate, saying they couldn't handle them. Cruz, in response, said the president is afraid of what he called "real journalists" on conservative radio."It's not surprising that President Obama is taking cheap shots," Cruz said on WTMJ, Milwaukee. The president is the "worst negotiator in the history of the world for the United States.""Every [Republican] goes on lefty journalist shows...