Democrats suddenly have a foothold that gives them subpoena power to probe deep into Trump's personal and professional missteps—and his long-withheld tax returns.

Fundraising, polls and history were not on the president's side. But two years after an election that proved polls and prognosticators wrong, an air of uncertainty—and stormy weather across parts of the country—clouded the outcome of high-stakes elections from Florida to Alaska and everywhere in between.

"Good politics is at the service of peace" will be the theme for the Jan. 1 commemoration and for the message Pope Francis will write for the occasion.

Saul Rascon Salazar, one of the DACA recipients, said people who don't vote are "throwing away an American privilege."

Many members of the caravan say that the generosity of Mexican citizens helps them keep moving to their destination, the U.S. border still some 1,500 miles to the north.

This year, the election hovered over the Teach-In, with conversations about immigration and racism predominating.