Donald Trump tried to clean up the mess after his widely criticized visit to Arlington National Cemetery, where two of his staffers allegedly engaged in an altercation with an official trying to enforce rules against photographing gravesites. The former president and Republican nominee posed for photos and videos alongside the families of two service members killed in an August 2021 bombing attack, and many critics questioned why Trump posed with a grin plastered on his face and his customary thumbs-up gesture. A spokesperson for the cemetery said two campaign staffers engaged in a verbal and …