Arnie Seipel

The fate of House Republicans has been in the hands of about 40 out of 246 members. They are the Freedom Caucus — some of the most conservative members of the House, who largely align with the Tea Party movement.

They've been causing outgoing House Speaker John Boehner headaches since he was elected to that position. The irony being that he became speaker when Republicans took over the House with the Tea Party wave in 2010.

And they are not too keen on Boehner's number two — Rep. Kevin McCarthy, R-Calif., who pulled out of the race for speaker this week.

Hillary Clinton was on NBC's Saturday Night Live during the 2008 campaign and appeared alongside Amy Poehler, her alter ego on the show.

They poked through the facade. Clinton went on as herself, wearing the same pantsuit as Poehler, who feigned awkwardness about sharing the screen with the woman she mocked weekly (though Poehler and Clinton say they are friends in real life).

Last night, Clinton again appeared on SNL — on the season premiere.

This has been the Summer of Trump on the campaign trail. Donald Trump has flown high in the polls, with seemingly nothing emerging to slow his rise.

But as heading into September, here are three hurdles the reigning Republican front-runner might have to contend with that run counter to his success so far:

President Obama wants to close the prison at the U.S. Navy base at Guantanamo Bay before leaving office. But his departing defense secretary, Chuck Hagel, told NPR News the job is "going to be very difficult" to complete in that time.

Hagel made that remark in an exit interview Friday, one of only a handful he granted as he prepared to vacate his expansive office at the Pentagon. The interview will air Monday on Morning Edition.

This story is part of the New Boom series on millennials in America.

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