U.S. President Donald Trump sits in the cab of a tractor trailer during an event with truckers and truck industry chief executive officers on the South Lawn of the White House in Washington, D.C., U.S., on Thursday, March 23, 2017. House leaders delayed a scheduled vote on their embattled health-care bill as conservatives mulled a deal proposed by the Trump administration aimed at winning Republican holdouts support. Photographer: Andrew Harrer/Bloomberg via Getty Images