Questions arise about claims by Donald Trump that are unsubstantiated.
Military rules will require Senate confirmation if he keeps his rank.
Trump also said more needs to be done "to root out hate."
The most recent terrorist attack there was in 2010, when two bombs exploded in Stockholm, killing only the bomber, Taimour Abdulwahab al-Abdaly, an Iraqi-born Swede.
He is the fourth national security adviser to remain on active duty.
Press secretary Sean Spicer said unauthorized immigrants who "pose a threat to our public safety or have committed a crime will be the first to go."
Trump tried on Sunday to clarify his remarks on Sweden on Saturday.
The president toured the museum with his housing and urban development secretary nominee, Ben Carson.
The Department of Homeland Security released two memos this morning.
The president paid a visit to the museum Tuesday.
The U.S. senator from New York says that he gets tearful despite President Trump's criticism that he recently shed "fake tears."
McMaster is an Army lieutenant general.
President Trump picked the lieutenant general to serve as his national security adviser.
Controversial Breitbart News editor Milo Yiannopoulos will not be the keynote speaker at this year's Conservative Political Action Conference, said the group that organizes the event.
Gen. McMaster is taking over for Michael Flynn, who resigned.
President Donald Trump denounced anti-Semitism today after facing criticism that he has not come out strongly enough against recent threats at Jewish centers.
A revised version of the executive order on immigration and refugee admittance is expected to contain language again targeting seven Muslim-majority countries deemed terrorism-prone but exclude a ban on Syrian refugees.
The Breitbart editor was scheduled to be the keynote speaker at CPAC.
Trump’s First 100 Days with SHUSHANNAH WALSHEDay No. 33THE BIG STORY: The search for a national security adviser is over. Sat together on a couch at Mar-a-Lago behind a massive bouquet of red roses, President Trump announced his pick as Lt. Gen…
The revised travel ban expected sometime this week will target the same seven Muslim-majority countries, a White House official said.
ABC News' MaryAlice Parks reports from Kempsville High School where Rep. Scott Taylor addresses the community.
Thousands of demonstrators turned out on Monday to challenge Donald Trump in a Presidents Day protest dubbed Not My President Day.
The vice president cited a "close working relationship" with Trump.
While in Iraq, Secretary of Defense James Mattis flatly denied President Donald Trump's controversial statements about seizing Iraq's oil.
The VP's latest Bidenism.