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Alex Wall, director of online engagement for the Obama White House, tells CNNTech's Laurie Segall about how the Obama administration protected their Twitter handle, and his concerns over the security of the @POTUS account now.

Outside of SpaceX's headquarters in Hawthorne California, students from MIT and Texas A&M and 25 other colleges competed in a Hyperloop Pod competition held by SpaceX.

CNNTech's Laurie Segall sits down with Twitter founder Jack Dorsey to discuss Donald Trump's unprecedented use of the platform and what 'real-time governance' means for citizens. Segall asks Dorsey if he would ever consider suspending the president's account.

Gita is an autonomous vehicle that can hold up to 40 lbs of cargo and follow you wherever you go.

A reporter for Breitbart News was ejected from a press conference hosted by the Council on American-Islamic Relations condemning Donald Trump's travel ban.

CNN's Brian Lowry reviews Fox's revived '24' series, starring Corey Hawkins as the new hero Eric Carter.

Ford CEO Mark Fields says he still has confidence in President Donald Trump's economic plans, but says the executive order denying entrance of many immigrants from seven predominantly Muslim nations is "against our core values as a company."

A peek at the ads and teasers ahead of the 2017 Super Bowl.

Yassin Terou is a Syrian refugee who's built his business using Square. Laurie Segall sits down with Yassin and Square CEO Jack Dorsey to talk about President Trump's latest immigration policies.

Financial Times global media editor Matthew Garrahan tells Brian Stelter that Rupert Murdoch and his sons have different views of Trump.

Russian journalist Alexey Kovalev and Turkish journalist Mahir Zeynalov say there are similarities between Trump's treatment of the media and the troubling behavior of authoritarian leaders.

Lydia Polgreen, Stephen Adler and Brooke Gladstone discuss coverage of the travel ban and the importance of reflecting the views of both supporters and opponents.

People gathered at airports around the country to protest President Trump's immigration ban from seven Muslim-majority countries.

Brian Stelter says President Trump received faulty information and made faulty conclusions about the San Bernardino attacks, which is now affecting the administration's new travel restrictions.

Joel Pollak, a Breitbart senior editor at large and co-author of the new book "How Trump Won," talks with Brian Stelter.

President Trump and his administration gave false and misleading information during his first week in office. CNN's Brian Stelter discusses the uncharted territory with Brooke Gladstone, Lydia Polgreen and Stephen J. Adler.

President Donald Trump says his executive order banning immigrants from seven Muslim-majority countries is working nicely.

With the stroke of a pen President Trump put the controversial Keystone and North Dakota pipelines back in play. The $8 billion Keystone project would stretch nearly twelve hundred miles across six states, carrying more than 800,000 barrels of crude oil per day from Canada to US refineries on the Gulf Coast.

President Trump has made the assertion that millions of people voted illegally in the last election. CNN's Poppy Harlow met with numerous Trump voters in Kentucky who said they are energized by his presidency and don't understand why he would want to second guess his victory with talk of voter fraud.

The Trump Organization has named overseers to police conflicts between the business and the presidency, including a long-time Trump Organization employee.