Arnie Seipel

With little power left in Washington, Democrats set out on Sunday to make a big statement against GOP efforts to repeal the Affordable Care Act with rallies in dozens of cities.

It's also a step for the party toward regaining its footing after grassroots efforts in 2016 failed to keep the White House in Democrats' hands.

President-elect Donald Trump won a convincing electoral vote victory on Nov. 8, but he is claiming falsely that widespread voter fraud cost him the popular vote.

The latest totals show Hillary Clinton leading Trump in the popular vote by more than 2 million. Trump tweeted on Sunday afternoon, "I won the popular vote if you deduct the millions of people who voted illegally." He did not provide evidence to back up that claim, and Trump's representatives did not immediately respond to a request for more information.

Updated at 7:30 p.m. ET

Federal agents now have a search warrant they need to examine the thousands of emails found on a computer belonging to former U.S. Rep. Anthony Weiner that could be pertinent to the investigation of Hillary Clinton's personal email server, sources familiar with the matter tell NPR's Carrie Johnson.

Weiner is the estranged husband of Clinton aide Huma Abedin.

Perhaps the clearest sign that Ted Cruz is seriously challenging Donald Trump's dominance in the Republican primary race is that Trump has started attacking him.

It started Friday morning. Just about an hour before Ted Cruz addressed religious conservatives gathered for the annual Values Voter Summit in Washington, House Speaker John Boehner — one of the renegade Texas senator's nemeses in the Washington establishment — called it quits.

And Cruz was nimble, adjusting his speech to give the activists he was speaking to credit:

Ted Cruz knows how to work this room. His supporters were out in force with T-shirts and buttons, building on the great reception of his speech.

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