Opinio Juris reports President Obama issued an executive order this morning imposing entry bans on those responsible for actions that “undermine democratic processes or institutions in Ukraine,” “threaten the peace, security, stability, sovereignty, or territorial integrity of Ukraine,” or involve “misappropriation of state assets of Ukraine or of an economically significant entity in Ukraine.” The power to specify covered individuals is delegated to the Secretary of State. Obama is acting under section 212(f) of the Immigration and Nationality Act, which gives the President a blank check when it comes to imposing entry restrictions. Obama has used this power at least twice, both in the summer of 2011. He used the authority to ban the entry of serious human rights abusers with this proclamation. In the proclamation referenced in today’s executive order, he banned the entry of individuals subject to UN sanctions regimes.