The plan would prevent protests on the National Mall where Martin Luther King Jr. delivered his famous "I have a dream" speech.
Each participant faces up to 10 years in jail if convicted of both traveling to incite riots and conspiracy to riot.
The Houston Fire Department determined the substance was not harmful.
The NYPD told Newsweek they are looking for two men suspected in the attack.
Some White House staffers remained unconvinced by Pence's denials about writing the op-ed.
A gaggle of senior White House officials are rushing to deny writing the anonymous New York Times op-ed that scathingly portrayed President Donald Trump.
Experts in both academia and private practice are trained to decipher anonymous writers.
"We called ourselves the Ponytail Posse because that's what the U.S. women's national team was about. The white girls next door."
The continuing practice of choosing overwhelmingly white intern classes highlights the current administration's practice of including few people of color, whether it be as interns or as official employees.
The U.S. says Chinese influence is bad for Africa, but South Africa and other countries are questioning what President Donald Trump has to offer.
"While I am Attorney General, the actions of the Department of Justice will not be improperly influenced by political considerations."
Prosecutors have since dropped the charges against the unidentified man, according to reports.
The White House released a video on Wednesday of families discussing the deaths of loved ones who were killed by undocumented immigrants following the killing of a 20-year-old woman from Iowa.
Current White House counsel Don McGahn has been cooperating with Robert Mueller, yielding comparisons to the man who helped topple Richard Nixon.
Paul Nehlen was one of a record number of white nationalists running for office in 2018.
Trump said that he was warned that Omarosa was a "loser," but that he kept her on because she said "great" things about him.
Helen Aguirre Ferré joined the Trump administration in January 2017 after campaigning for former Florida Governor Jeb Bush during his presidential bid.
28-year-old Reagan Hedlund was hired to be the first lady's policy director back in January, but has left to work on foreign policy issues.
Secret Service officers were "alerted to a vehicle at a checkpoint" nearby.
The incident took place on a bus.
"We condemn this despicable communication and reaffirm Vanderbilt's commitment to the success and positive affirmation of all."
The White House said that "Trump looks forward to having President Putin to Washington after the first of the year."