The Dems are certainly responsible, but not in the sense of that Daschle is saying it. The Dems in the Senate simply decided that they would support NOTHING that helps the Republicans, or even permits Trump to run the country...so that is the problem - not tactics, but HYPER-partisanism on the part of the Democrats.
And Daschle was extremely partisan when he was the majority leader. Even Bill O’Reilly who doesn’t ordinarily say he prefers a candidate said it was a good thing when Thune defeated Daschle.