Trump's executive power flex leaves some legal challengers adrift 

President Trump’s unprecedented flex of executive power has sent legal challengers scrambling to courts to pump the breaks. 

But some of the president’s more extraordinary actions have been difficult to confront, as the administration barrels forward with an act-first, defend-later approach to its policy agenda. 

“We were looking for any mechanism that would, so to speak, stop the trains here,” Andrew Goldfarb, a lawyer representing challengers to the Department of Government...