Is the reason for these impeachment hearings simply to downplay and refute any Ukraine involvement in the 2016 election?

No, the purpose of these hearings is to remove potus from office thereby overturning the results of the last election.

No, the only reason for these hearing is to try to overthrow the results of the 2016 election - to remove Trump from office. The democrats could not care less about the facts.

Nope it's to expose Trump's wrong doings regarding Ukraine!

Only fools, morons or traitors believes it was Ukraine that meddled in the 2016 election!

No.  The purpose of the hearings is to explore Trump's scheme to pressure Ukraine into publicly announcing an "investigation" into Joe Biden and the DNC.  

The story about Ukrainian interference with the 2016 election originated with Putin.  That's why Trump is pushing this bizarre story about Ukraine's interference and trying to exonerate Russia.  The US intelligence agencies have determined that Russia had interfered in the 2016 election.  

No.  Trump is guilty of breaking the law, and his rich buddies are protecting him.  The corruption in government is truly disgusting.  If Trump is not removed from office it will mark the beginning of the end of the USA

Yes, in large part the dems are desperate to keep their crimes from public view. Barr is getting close.

That is because Ukraine is a third world country. They do not have the resources. 

Russia has the resources.