Al Gore is concerned that a potential Donald Trump presidency could roll back progress in the fight against climate change.

Twenty years after she endured worldwide ridicule when her affair with President Clinton was revealed, Monica Lewinsky is still working to reclaim her identity.

Dr. Jill Biden reflected on the decision by her husband, Vice President Joe Biden, not to run for president.

Donald Trump told TODAY that he’d use torture on suspects if necessary to try to obtain vital information.

The effervescent fitness guru spoke with NBC’s Savannah Guthrie over the phone about his seclusion.

The morning after a contentious Republican debate, Sen. Marco Rubio continued to press the issue that Trump’s behavior has made a mockery of the election.

Facebook is rolling out its new “Reactions” feature for all 1.6 billion of its worldwide users.

“I’m not in this race to attack any Republican…I didn’t run for office to tear up other Republicans,” the Florida senator said Wednesday.

Kasich feels his campaign emphasizing the positive can stand up to Trump’s attacks on his closest rivals.

Ahead of Iowa, Palin discusses the GOP hopefuls and addresses the controversial comments she made on the campaign trail involving PTSD and President Obama.