I'm disappointed—not because of the result, because the Democrats made a painfully and comically weak case—but because of how nakedly partisan this whole process has become.
The Democrats voted to convict not because they thought he committed a heinous offense, but because they wanted to oust a political rival, no matter how flawed the charges were. That goes for Romney, too.
The Republicans, most of them anyway, voted to acquit not because they thought he was innocent, but because they felt obliged to protect the titular head of the party. I get the sense that very few members of either party voted on the merits of the case... other than perhaps Ted Cruz, who more than any other would have had a legit grievance against Trump for committing dirty tricks, but still voted to acquit.
To quote Johnny Cash... "and the lonely voice of youth cried, 'What is truth?'"