You are truly delusional if you think Kavanaugh helped the democrats. Even MSNBC is saying the GOP got a big boost from it. Americans like winners and democrats aren't winning anything lately. GOP is dominating all the political fights.
Most polls since things have calmed down say that the Kavanaugh confirmation has energized Democrats more than Republicans.
Yeah, that's why a lot of Democrat leads have been whittled down in most polls, because Democrats were more energized than Republicans when it came down to Kavanaugh.