Let's not get ahead of ourselves here no matter how much we might wish a particular outcome. Right now we have a Republican-controlled House and Senate in Washington. The leaders of the 2 houses have made it clear that they will not stand up against the Republican President for any reason--even treason. They have chosen to put party ahead of country. So be it. A day of reckoning will arrive.
That being said, the hoops that the FBI had to jump through in order to even get permission to conduct the raid on Cohen's home, apartment, and hotel room indicates that someone (probably Mueller and his team) discovered evidence of criminal activity that was outside the scope of the Russia investigation, but needed to be addressed. Passing this information and responsibility for follow-up from Mueller's team to the Southern District (of New York) courts and FBI is fully within the scope of Mueller's investigation. I suspect it is something that Mueller saw as so serious that it would derail the Russia investigation. He could have easily gotten permission to expand the scope of his investigation. The original charter for his investigation specifically stated that ANY criminal activity discovered could be dealt with by expanding the scope of Mueller's investigation to include it. Mueller chose not to do that. Probably because he has no interest to die in office some day as the investigation continues to expand to include various wrongdoings that continue to emerge.
Back to the House and Senate. Both houses have shown that they are too spineless to act on their own. Should the investigation turn up evidence that they can no longer ignore, there is a slight possibility that the House might act to impeach Trump. However, I do not think that the Senate will vote to remove Trump from office.
If by some stroke of fate the Democrats gain control of both houses in the mid-term elections (highly doubtful) then Katie bar the door. Impeachment and removal from office require only a majority vote. If the evidence is sufficient then I think one of the most honorable men ever to serve in the U.S. Senate, Sen. John McCain, along with a few other Republicans, will also vote to remove.
But, as I said in the first paragraph, let's take it one step at a time. Donald Trump is still President of the United State and barring a really stunning turn of events will remain so until at least the 2020 elections.