There are already impeachment hearings ongoing. That's the logical and legal first step in the due process of Impeachment. It is sketched out in the US Constitution Article 1, Section 2, Clause 5. The practices to be followed have been established by law and precedent in the years since, including two unsuccessful efforts at impeaching Presidents Andrew Johnson and Clinton and one in progress that was rendered moot by Nixon's resignation, plus dozens of successful impeachments of judges and Cabinet officials over the years.
I think unless there is a resignation or two soon an Impeachment Bill will pass the House. T is admitting to rimes or simply committing more crimes in public every day. Aren't you paying any attention?
Once the House Bill of Impeachment gets to the Senate, t has a 53-man defensive line that will be hard to crack. It will take at least 20 Republican Senators to decide that America is more important than Party (or, more practically, to decide that their re-election is more important than supporting t) for t to be forced from office.