Answer:
This will have a centrifugal effect on a country.
Step-by-step explanation:
If we have a situation where a country's population is divided because of political views, with people from rural areas supporting one, and people from urban and suburban areas supporting another one, the country will most probably experience a centrifugal effect. The centrifugal effect is a negative effect for a country because it causes division and potential break up.
In this case, it is not just that people vote for two different political parties, but the problem is that the voting is related to particular groups of people with different types of lifestyles and views in life. This always tends to cause problems, often starting with fierce debates and protests, but occasionally ending up with violence and separatism.