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House Majority Leader Kevin McCarthy, R-Calif., was supposed to win the GOP leadership election to succeed retiring House Speaker John Boehner easily. Wrong.

Faced with a conservative revolt and an inability to win over his caucus, McCarthy made a stunning announcement Thursday that he was withdrawing from the race.

Democrats rejoiced in the ensuing chaos. There was reportedly crying in the halls of Congress. And 2016 contenders even offered up their thoughts on successors.

Here are some of the best reactions.

Russian cruise missiles that were fired from warships in the Caspian sea and were intended to hit Syrian targets crashed in Iran, instead, a U.S. official tells NPR's Tom Bowman.

Tom reports that the missiles landed in a rural area of Iran. Local television, Tom reports, said "that something crashed and exploded near the northern city of Tekab, shattering windows and leaving a large crater."

Public health advocates have argued that one of the best ways to fight obesity would be to tax the sugary drinks that science has implicated as a big part of the problem.

Parents who are uneasy about their own math skills often worry about how best to teach the subject to their kids.

Well ... there's an app for that. Tons of them, in fact. And a study published today in the journal Science suggests that at least one of them works pretty well for elementary school children and math-anxious parents.

Updated at 3:40 p.m. ET

A new analysis of data from Fukushima suggests children exposed to the March 2011 nuclear accident may be developing thyroid cancer at an elevated rate.

But independent experts say that the study, published in the journal Epidemiology, has numerous shortcomings and does not prove a link between the accident and cancer.