With just days before the deadline to fund Homeland Security, it’s congressional Republicans who are divided over blocking President Obama’s immigration reform efforts and avoiding a shutdown. Political editor Lisa Desjardins joins Gwen Ifill to discuss the political battles at the Capitol.

Gwen Ifill speaks with Nia-Malika Henderson of The Washington Post and Amy Walter of the Cook Political Report about Republican motives in the fight over funding the Department of Homeland Security, who to be on the lookout for at two upcoming conservative conferences, plus the politics behind the 2015 Academy Awards.

This Week, ISIS expanded its reach to North Africa where 21 Egyptian Christians were beheaded. At the same time, the White House held a violent extremism summit where President Obama rejected calling the group “Islamic.” The Daily Beast's Nancy Youssef and POLITICO's Michael Crowley report on the group's expansion and why the words used to describe ISIS fighters really matters.

President Obama has formally asked Congress for war powers to fight Islamic State militants, but his request is being met with resistance. Republicans think Obama's three-year proposal is too restrictive with limits on his power, while Democrats want a ban on ground troops. And in Ukraine, a ceasefire deal negotiated by European leaders takes effect this weekend.

In Nevada, the debate on immigration reform has consequences beyond the political. Facing a mixed bag of law and executive action, many live with the fear that their families will be divided by deportation. Gwen Ifill reports on personal stakes at the heart of the political fight.

On the Webcast Extra, NPR’s Tom Gjelten details what the new Cuba regulations mean for the individual traveler. Robert Costa of The Washington Post explains how the GOP is using immigration as a strategy for 2016 and what to watch with potential Democratic candidates. Joan Biskupic of Reuters delves deeper into the Supreme Court and same-sex marriage.

President Obama's immigration decision and the Republican response questioning the president's authority. Also what will Obama's lame duck years look like going up against a new GOP Congress? Plus, will an immigration overhaul impact Election 2016?

The White House and Congress recalibrated this week after the Midterm Election with a refocus on issues such as the Keystone pipeline, immigration and healthcare. Also a closer look at the historic U.S.-China climate deal. Plus, if the midterms were a wave election for the GOP, what does it mean for both parties as they look to 2016?

As the campaigns look ahead, Mitt Romney targets Barack Obama, but he is targeting youth voters. The Supreme Court hears arguments on Arizona immigration law. Also, a year after Osama bin Laden's death, balancing terrorism and civil liberties. Joining Gwen: John Dickerson, Slate Magazine/CBS News; Alexis Simendinger, RealClearPolitics; Pete Williams, NBC News; James Kitfield, National Journal.

Mitt Romney and President Obama court Latino voters as immigration politics enters the spotlight. Plus, Obama invokes executive privilege as Attorney General Eric Holder faces a contempt of Congress charge. Also, what’s Europe’s economic future? This Week: Jeff Zeleny, New York Times; Laura Meckler, Wall Street Journal; Major Garrett, National Journal; Doyle McManus, Los Angeles Times.