Updated at 3:36 p.m. ET

Sen. John McCain may, once again, be the savior of President Barack Obama's signature domestic achievement.

The Arizona Republican announced in a statement on Friday that he opposes the latest GOP legislation to dismantle the Affordable Care Act.

North Korea has suggested that it could test a hydrogen bomb in the Pacific, the latest in an escalating tit-for-tat between leader Kim Jong Un and President Trump.

If Pyongyang makes good on the threat, it would mean marrying the two most powerful weapons known to man: a fusion-type nuclear weapon and a ballistic missile.

"This could probably mean the strongest hydrogen bomb test over the Pacific Ocean," North Korean Foreign Minister Ri Yong Ho told reporters in New York on Thursday in response to a question about what action the regime might take against the U.S.

German Chancellor Angela Merkel and her Christian Democratic Union are poised to win Germany's national elections Sept. 24. But for the first time since the Second World War, Germany's Parliament, the Bundestag, also looks set to include an extreme right-wing party — the Alternative fuer Deutschland (Alternative for Germany) or AfD.

Since its founding in 2013, the party, led by economist Alice Weidel and former CDU politician Alexander Gauland, has been shaking up the German political landscape. It is currently represented in 13 of Germany's 16 state legislative bodies.

Uber's license to operate in London expires in eight days — and London's transportation agency says it won't be renewed, citing a range of problems that make the company "not fit and proper to hold a private hire operator licence."

The issues raised by Transport for London include Uber's "approach to reporting serious criminal offences" and how it handles background checks.

Uber says it will appeal the decision. Transport for London had been considering granting Uber a five-year license. The company was first licensed in London in 2012.

North Korean dictator Kim Jong Un has weighed in on the heightened tensions on the Korean peninsula, with a personal analysis of President Trump's Tuesday speech at the United Nations General Assembly.

Trump's speech, which was notable for its apocalyptic rhetoric — it vowed to "totally destroy" North Korea and its 25 million people if the United States had to defend itself and its allies — aroused greater fears of military miscalculation that could lead to catastrophe.

The brain of former New England Patriots star Aaron Hernandez showed severe signs of the degenerative brain disease chronic traumatic encephalopathy, referred to as CTE, according to doctors who conducted tests after he committed suicide in April while imprisoned for murder.