Senators Paul and Lee saying they're not abdicating their duty this time implies they have done so previously.
Also, while the president can technically do a whole lot with the military, he's still constrained by the law. If the law specifically notes it dedicates no money to dronestrikes, the president may not do dronestrikes because there's no money for them. His attempts to use emergency regulations to shift money towards building the southern border wall and the judicial procedures slapping that down make that quite clear.
Also, while the president can technically do a whole lot with the military, he's still constrained by the law. If the law specifically notes it dedicates no money to dronestrikes, the president may not do dronestrikes because there's no money for them. His attempts to use emergency regulations to shift money towards building the southern border wall and the judicial procedures slapping that down make that quite clear.