I heard an explanation (from an Olympia lobbyist) for why the Senate Republicans, as a bloc, refused to support any EV bills at the end of the session. I can not confirm that the explanation is correct, but if it is true there is hope for next year (and more importantly, there is a hint on how to help) so it seems worth posting what I was told:
The legislators had recently passed, by an overwhelming majority, 6617 to exempt themselves from the public records law. The legislation was passed very quickly, and in fact bypassed the usual public comment formalities. (Which in my experience really seem like formalities; most legislators seem to have already made up their mind and don't appear to pay much attention to the comments. More on this below). There was a large outcry by the media and the public, and in retrospect the legislators themselves realized they had done the wrong thing - at least the wrong way - and there were letters from both D and R lawmakers asking Inslee to veto the legislation they had just passed. It had passed with enough votes to override a veto, but they said they would not do so.
Inslee did veto it. I am told that at the time of the veto, one of his policy advisors made a disparaging remark about the Republicans' role in the legislation. I cannot find ANY comments by the policy advisor online, and everything I can see from Inslee was pretty respectful and did not try to blame one side...and the D's are in charge of the process now, so I would think the blame would default to them. But I am just searching online news; maybe it was on TV and there is no transcript. In any event, the Republican leaders were unhappy with the response (not the veto, but rather the words I can't find) and wanted to "punish" Inslee by not passing some legislation that he wanted. Inslee was in favor in the EV bills, so despite personal support from many senators (remember it passed 86-12 in the House, and some of the biggest supporters there are R's), all Republican senators obeyed their leaders and refused to support the bill. It could have passed if just one of them had flipped.
The lobbyist said at least this means that we have a better chance if we try again next year. She also pointed out that by the time of the public hearings on a bill, most legislators are too caught up to spend time researching issues and rarely change their mind - a better time to influence their positions is to meet with them in the summer at their district offices.
So if you care about this legislation, you might put a reminder on your calendar to look up your Senator this summer.
(I do not mean this to say that it is meaningless to comment on a bill, or to email your legislator when one is near a vote. While they are unlikely to read comments and reconsider their position for that vote - though they sometimes do when there is a huge outcry, in fact that's how we got the anti-Tesla provision in a dealer-OEM relationship bill changed in 2014 - they do tally constituent positions and pass that up to party leadership. So while it may not usually affect the current vote, it may well affect future positions. I am just pointing out that you will be more likely to affect next session's votes if you make direct contact before the session starts).