How did mid-term elections in 2018 impact the way Congress operates? What will be the biggest issues facing Congress in 2020 and beyond?

In the 2018 mid terms, Democrats regained control in the house whole The Republicans tightened their hold on the senate.

Explanation:

The Congress has now a split vote share clearly visible as most Governors would come from the Democrats but the Senate itself is run by the Republicans.

There was also more number of women winning seats than they did in the previous elections. There was an expansion of voting rights for mid terms that allowed for a more free voting process.

This reduces Donald Trump's powers considerably and shows a better system of checks and balances to be imposed on a government.