Thursday on the NewsHour, former presidential nominee Mitt Romney leads the Republican establishment against Donald Trump. Also: A look at the GOP’s deepening schism, scientists hope mutant mosquitoes can stop Zika virus, how the Islamic State is using child soldiers,…

Thursday on the NewsHour, Republican presidential candidates prepare for the 10th GOP debate in Houston. Also: Doubts swirl about the looming Syrian ceasefire agreement, how economic fears feed into populist politics, the mother of a Columbine shooter writes on her…

Wednesday on the NewsHour, presidential candidates scramble for votes across dozens of states as Super Tuesday looms on the horizon. Also: A look inside today’s divided political landscape, critics question the extent of America’s nuclear arsenal in a post-Cold War…

Tuesday on the NewsHour, President Obama announces plans to close the detention center at Guantanamo Bay, drawing vocal opposition from GOP lawmakers. Also: Republican candidates prepare for the Nevada caucuses, sea levels rise faster than ever before, Los Angeles’ plan…

Monday on the NewsHour, following the latest round of voting, Amy Walter and Tamara Keith talk the changing face of the 2016 race. Also: The proposed Syrian ceasefire takes effect next week, the Supreme Court remembers Antonin Scalia, U.K. considers…

Friday on the NewsHour, with less than 24 hours to go before polls open in South Carolina’s Republican primary, trailing GOP contenders make one last push for support. Also: a look at South Carolina’s sharp-edged political scene, Shields and Brooks…

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