An honest question for Republicans.

I just read that most Republicans wouldn't support Donald Trump's impeachment even if Mueller proves he accepted Russian assistance or obstructed justice.

https://www.newsweek.com/republicans-support-donald-trump-impeachment-russian-assistance-mueller-1355656

Is this true? Do you believe the end justifies the means, even if it involves cheating, lying or obstructing justice? Or actual treason...