Michael Boateng and Hakeem Adelakun are the third and fourth people charged in connection with the investigation into an alleged international illegal betting syndicate.
Chann Sankaran and Krishna Sanjey Ganeshan were charged on November 28 and remain in custody.
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A top temperature today of 13 Celsius (55F).
Mr Trump tweeted that Mr McMaster has done "an outstanding job & will always remain my friend." He said MrBolton will take over on April 9.
The committee wants a more stringent interpretation of air quality laws and for noise estimates to reflect a range of possible flight paths.