Hearing will be over today and impact on public opinion is minimal. 
Trump is unlikely to be impeached. 

When asked about the Senate removing Trump, support increased slightly to 48 percent but

that number was 2 percentage points lower than support expressed for removal in

a Politico/Morning Consult poll conducted a week earlier. In that week, opposition among

independents grew by 10 percentage points.

“Voter opposition to the impeachment inquiry is at its highest point since Morning Consult

and POLITICO began tracking the issue,” Tyler Sinclair, Morning Consult’s vice president,

said. “A key driver for this shift appears to be independents. Today, 47 percent of independents

oppose the impeachment inquiry, compared to 37 percent who said the same one week ago.”

https://www.rollcall.com/news/new-polls-show-impeachment-hearings-having-minimal-impact-on-public-sentiment

Democrats are in a dilemma. Impeachment inquiry does not show any positive signs. 
It will fail and Trump will say, " See, I was right and Democrats were wrong". 
Military aid to Ukraine was carried out on Sept. 11. There was no harm done to 

Ukraine. The dirt with Hunter and Joe Biden are sitting there waiting to to be exploited. 
It will come back to hunt Democrats.