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This Morning from CBS News, Dec. 2, 2015

Donald Trump

A new poll shows Trump building on his lead atop the GOP presidential field, with 27 percent of Republicans nationwide backing the real estate mogul. He has dismissed the rest of the GOP pack and repeated his debunked claim that he saw thousands of Muslims celebrating in New Jersey on 9/11, and his campaign continues to offer up purported proof.

Fighting ISIS

President Obama has ordered about 200 American Special Operations forces to deploy to a base in northern Iraq, from which they will carry out missions in that country and neighboring Syria targeting senior ISIS operatives. British lawmakers, meanwhile, will decide today whether to join the fight in Syria, at least from the air.

Gun violence

Democrats and physician advocates will call on Congress this week to reverse a funding ban on gun violence research at the Centers for Disease Control and Prevention (CDC) that has been in place for nearly 20 years. But the move to reverse the ban could be looking at long odds given the current power-balance on Capitol Hill.

The fighter

Janet Lang is one of Bernie Sanders' most ardent supporters in New Hampshire. But when the 68-year-old isn't battling to put Sanders over the top in the New Hampshire primary, she's undergoing radiation and chemotherapy treatments in her fourth battle to date with cancer.

Hoverboards

Hoverboards are one of the hottest holiday gift ideas this year. They've been flaunted by celebrities,desired by kids and hunted by desperate parents trying to fill wish lists. But like any new set of wheels, they come with their own unique set of safety concerns.

Public defender

In the latest courtroom dispatch from journalist-turned-Florida-public-defender Kim Segal, she discusses the fact that the the state is spending thousands of dollars to try suspects accused of possession of small amounts of cannabis, even as juries balk and the laws become more lenient at the local level.

Disruptive technology

Could we invent our way out of the climate crisis? As the COP21 talks continue in Paris, scientists and inventors are working to develop energy sources and technological advances that could help turn the tide against climate change.

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World

Norway's government makes electric cars almost irresistable

Serbia wants Steven Segal to train special police forces

Argentine man stolen as baby reunited with mom 38 years later

Politics

Trump still dominating race as Ben Carson fades

Congress reaches deal on 5-year transportation bill

Trump doles out self-help advice in New Hampshire

Clinton marks anniversary of Rosa Parks bus boycott

Business

7 signs you're dropping out of the middle class

The stock market is calm -- that's worrisome

Science and Tech

Hundreds of whales beached on Chilean coast

For some people the older the smartphone, the better

Health

Who should be taking the HIV prevention pill?

Reining in the rising cost of some prescription drugs

Entertainment

Carrie Fisher had to lose 35 lbs for new Star Wars movie