What do the economic systems of the United Kingdom ,Germany , Russia have in common

All are examples of mixed economies

Explanation:

Mixed economies born from the combination of Free-market and command economy. They allow the private sectors to freely compete in the market, but a strong government exist to regulate their activities and possibly managed several important resources  (such as gas, oil and water)

Both United Kingdom ,Germany , and  Russia has a mixed economy.  The only difference is the strength of government within the system. Russian government has a stronger influence in the economy compared to UK and Germany.

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "