Even now in what appears to be a complete repudiation by Putin for expulsion of US diplomats, I suspect there may be plans within plans. Note Mr Trump has not as yet signed the sanctions bill. This may offer him some cover should he decide not to sign it and provide what may appear as a legitimate reason not to sign it. This may force Congress to reconsider.
Or it could be the whole thing is meant to provide a variety of avenues for speculation leading nowhere.
