Trump impeachment inquiry: Did Republican witnesses help Democrats more?

On day three of public hearings in the impeachment inquiry, the witnesses included top aides who listened in on President Trump's call with Ukraine's leader. What did we learn?

One was a decorated Iraq War veteran who was born in Ukraine and came to the US as a child, Lt Col Alexander Vindman.

The other was US Vice-President Mike Pence's top adviser on Russia, Jennifer Williams.

With the TV cameras rolling on Capitol Hill, they repeated concerns they had aired behind closed doors about the July phone call between the two leaders.

But much of Tuesday's hearing was spent talking about a person who was probably not even in the room - the whistleblower.

Here are my takeaways.

'I do not know who the whistleblower is'

Did Alexander Vindman talk to the whistleblower about Trump's 25 July phone call with Ukraine's president?

That certainly seems to be what Republican Devin Nunes believes.

After a few questions about Hunter Biden and Ukraine, Nunes started asking the two witnesses about whether they spoke to the press about the now famous Trump phone call.