The US Constitution does not specifically mention immigration or refugees. However, the Constitution does give Congress the power to establish a uniform rule of naturalization, which is the process by which an immigrant becomes a citizen.
Additionally, the Constitution grants the President the power to make treaties, and Congress the power to regulate commerce with foreign nations, which can impact immigration and refugee policies. The 14th Amendment to the Constitution also provides equal protection under the law to all people within the United States, including immigrants and refugees.
" A new Russian law has come into effect giving those deemed to be highly skilled foreign workers an opportunity to get a residence permit in the country. Previously, highly skilled specialists could obtain such a permit easier than other foreigners, but only for a limited period of time. "
==>It seems to be Russian leaders are a lot smarter than American ones, especially Trump! lol.
Source:
Major immigration changes come into force in Russia — RT Russia & Former Soviet Union –
Major immigration changes come into force in Russia