Congress started investigations into Trump back in February.

[TwilightZone]

3. I've seen those posts as well.

Many posters keep (intentionally) ignoring the "from what we know NOW" parts of the Pelosi and Hoyer statements, not understanding that there's more to discover and that discovery has been going on for a while now. One would think that the media coverage of the ongoing investigations both inside and outside of Congress would be common knowledge here, but that's clearly not that case.

As I've noted in other threads, this isn't a binary choice. It's not start impeachment at this very moment or you condone Trump's actions. Starting impeachment without all of the available information, as some are demanding, would be misguided.