President Donald J. Trump broke away from his security detail before boarding Marine One to greet local enforcement officers following a roundtable discussion on illegal immigration in Bethpage, New York on Wednesday. The video, tweeted by White House aide Dan Scavino Jr., shows Trump jogging over to shake hands with a row of New York State Police and Nassau County Police officers. “As the granddaughter of a firefighter I’m so proud to work for a president who supports the men and women of fire departments across the country, as seen here today in Bethpage, NY,” tweeted White House press secretary...