Yes and no. I wouldn't blame just Trump per se, because forest management policy implementation across jurisdictions moves glacially-slow. There is likely enough blame to go around, such as not clearing fuel around the electrical grid and not setting intentional, controlled clearance fires.

https://www.redding.com/story/news/2018/11/11/trump-blames-s...

The most economically-destructive fires are at the Wildland-urban interface (WUI), especially new residential developments that build right up to and in large, dense forested areas. Without proper fire mitigation for houses, infrastructure, and communities, devastating Camp Fire scenarios are entirely possible again.