You can still bring a claim for a brain injury case in Washington, even if you’re partially at fault. Washington has very good law about what lawyers call comparative negligence, which is the idea that more than one person can be at fault for an injury. For example, you could find the driver of the car that harmed you might be 90% at fault and you would be 10% at fault and if that happened, the only effect is that it would reduce your claim by 10%. You still have a good claim.