The Constitution guarantees the Senate is the only body that may try a sitting president, but it does not stipulate they must try him or her, despite the vote of the House. More than twenty Republicans in the Senate (nearly 40%) would have to vote against Trump in order for the impeachment to have any effect, whatsoever. The first step would be removing him from office; that doesn't guarantee he can't be reelected. That's just not going to happen by any realistic stretch of the imagination.

Trump's legacy will be pockmarked by this, either way, but it is not unforeseeable that he will be reelected for another term. There is still a lot of support for him by a lot of people who believe he is doing a great job, and, asking around, not one person I have spoken to knows the name of a single Democrat candidate. There has been practically no advertising yet, from either side, unusual for an election season that typically starts at the midterm.

He's probably going to be reelected and there isn't shit that anyone can do about it. He's the name on everyone's lips, and this impeachment will only solidify his reign.