Earnest said Alexander Litvinenko's death could have been "lifted right out of a spy novel."
The launch comes one day before Obama's final State of the Union address.
Congress has seen a 7-point drop in approval since February.
The screening is for children of fallen U.S. service members.
The nation's highest civilian honor will also go to Willie Mays and Emilio and Gloria Estefan.
Hillary Clinton is leading the rest of the 2016 Democratic presidential field by an extra 10 points...
The senator specifically mentions her opposition to the TPP in backing Clinton.
“This has been a very different campaign than most people anticipated," he said.
Rep. Luis Gutiérrez (D-Ill.) says letting Trump host would be a "corporate blunder."
The GOP front-runner will book a visit on a later date, a Trump spokeswoman said.
O'Malley said America needs to try new leaders.
Former President George W. Bush is not a fan of Sen. Ted Cruz.
"I think he's divisive," the vice president added of Trump.
Sen. Ted Cruz is also a "dicey" choice, the former Bush adviser warned.
Hagel says aides continued to criticize him in the press even after he left.
Obama incorrectly said that a suspect used the nation’s Visa Waiver Program.
The Nobel Peace Prize winner's party won a landmark victory in elections this week.
Sen. Marco Rubio (R-Fla.) trails the pair with 10.7 percent, pollsters found.
“That’s pretty outrageous behavior,” the 2016 White House contender said.
Trump has seen Carson overtake him in some polls in Iowa.
"I hope he has a lot of money, because it’s a very expensive process," Trump said.
Clinton receives 68 percent support, compared with 20 percent for Sanders.
Bush defended his brother's legacy, noting that after 9/11 "no one attacked us again."
“There’s no question that we’re both resonating," Trump said.