The long summer Presidential TFR has been announced for August 2-13, 2018, begins Aug 2d at 2100L (that’s 0100Z on Aug 3d), it ends on Saturday, Aug 4th at 1630L/2130Z.  This appears to be a brief visit, likely due to the President leaving on an outing.  The TFR will return on Saturday August 4th at 2130L/(0130Z on Aug 5th) until Monday Aug 13th at 2000L (midnight Zulu).  As always, please consult FSS before you fly and the tfr.faa.gov website.