Jeb Bush and Marco Rubio spar over immigration reform

2016-04-02 5

Candidates clash at the 7th GOP debate in Des Moines, Iowa.
more at cnn.com.
Republicans Face Off In First GOP Debate Of 2016 Election GOP Debate, Gop Debate 2016, Gop Debate Live Updates, Gop Debate Live Video, Republican .
Donald Trump tries to take a serious tone while rivals Sen. Marco Rubio and Sen. Ted Cruz spar over immigration reform. CNNs Dana Bash reports.