Biden admitted on video to pressuring the Ukrainian Government into firing the prosecutor investigating the company that his son was on the board of.

It's not good for Biden to use his position to do this and it represents and example of corruption.

One of the major issues many have with Trump is his lying. Does this negate that issue for anyone especially given the flip flops Biden has done during the debates on issues such as the Green new deal?

No, this does not negate Trump lying, because Trump lies all the time, about everything. Biden flip-flopping is not the same thing, as flip flopping is relatively common among politicians.

Does this in anyway affect your vote or willingness to cast a vote?

Nope. Still gonna vote for Biden. I'm very willing to vote tactically and very willing to vote for the lesser of the two evils. Trump cannot be allowed to win under any circumstance and I'm not going to stand by and not vote or vote 3rd party and help hand him the win just to make a point or to take a moral stand against something Biden might have done that's bad.