GOP candidates execute strategy with little resistance at debate

Mission accomplished at the fourth Republican debate last night as Marco Rubio emerged unscathed, Ben Carson defended his integrity, Donald Trump flashed his dominant personality and Jeb Bush avoided disaster.

Aided by tentative questioning, the GOP's top presidential candidates executed their strategies with little resistance in Tuesday night's debate.

Yet with no breakout moments, good or bad, the muddled status quo continues in the Republican party's unruly 2016 contest.

Gov. Chris Christie was the star of the undercard debate, but also did little to move up in the polls.