Why do the R's keep harping on about the D's wanting to impeach since before Trump was even sworn into office? Are congressmen under any obligation to be unbiased going into an impeachment?
Trump was credibly accused of a multitude of crimes long before he became president, so of course some people would be eager to see him removed from office. I just don't see how that has anything to do with the current proceedings.
You know the old saw everyone's been repeating about how if neither the facts nor the law are on your side, you pound on the table? This is that.
See, you're confused in part because you're trying to find meaning in what they're saying. Decades of Fox News and years of Trump have purged the Republican base of almost anyone capable of actually listening to and understanding a complete sentence, so the Republicans need not bother making sense. They know full well that whatever they say is going to end up on Fox, where the "R" next to their name will inevitably trigger approving if inebriated hooting. Equally, they know that whatever points their opponents might make, a capital "D" on the screen will cause all sensory input to be blocked out in a fit of angry belches punctuated with racial slurs. The only reason they bother saying anything at all is to fill up airtime, get sound bites, and give their base new things to chant.
If you're wondering why the R's do anything, imagine them talking to a horde of zombies in red hats. That should make things clear.