How would you expect a recusal to work in this situation? It is the job of the House to vote for impeachment, no one else can do that for them and if everyone with a bias recused themselves then who would be left that could do anything? How many people you gonna find in the House who don't have any strong feelings about Trump one way or the other?
Is impeachment interfering in the 2020 election? Ok, sure, technically it could be called interfering with an election because it might affect some voter's minds however it is not illegal interference with the election.
They do a BIPARTISAN CONGRESSIONAL INQUIRY, just like it was done in the past (Nixon). Or, they appoint an INDEPENDENT COUNSEL to do the investigation, just like they did it in the past (Clinton). Either way, it is NOT supposed to be a majority party running an inquiry for a month prior to even holding a vote. And they don't give it to the House Intel Committee chair, Adam Schiff, who has a 2-year record of lying about how Trump is guilty, and there is evidence to prove it.
The House Judicial Committee is the appropriate committee to start the inquiry, but (1) Nadler had his shot and failed, and (2) the Dems could not create a cloak of secrecy for the proceedings outside of pretending the inquiry involves national security in some way.
I don't think the supposed request to dig up dirt on Biden has any more to do with national security than the fraudulent Russia Collusion attempted coup did. If that were the case, Hillary and the DNC leadership should be in prison now for paying for dirt on Trump from foreign sources. Hopefully there's more coming in that situation.
All this impeachment crap is a smoke screen for every dirty swamp rat who tried to stop Trump before and after the 2016 election in the Steele Dossier & Collusion snipe hunt, and to distract from the fact the Dems have the worst people possible trying to get the nomination -- none of whom have a good chance of beating Trump.