Effectively, nothing. President Trump has been impeached twice and is running again in 2024. President Clinton was also impeached.
Impeachment can be complicated. Just do a search on it. There are many articles, etc. that further define it.
Without conviction in the Senate its effectively a note home to the president's mother!
And if anyone thinks the Rats would be shamed by it hasn't been paying attention to Rat behavior for the last 40 years!
I've researched it well!