muscular sanctions. she worries about the risk to nato allies. >> this is deadly serious. they have to feel the pain. it has to be up to the richest man in the world, vladimir putin. >> there's starting to be a divide between the liberals and president when it comes to troops, even if they don't see combat. >> i think congress has not been consulted sufficiently. the executive authority to -- whether it's with troops or send weapons or whatever it is, a lot of those things have to have more congressional consultation. >> some on the left and the right say moving troops around is problematic and they want congress to exercise their constitutional war powers. lawmakers sitting on the sidelines is what led former presidents to rely on old congressional authorizations to justify military operations for decades.