There's been no legislative change, but the the Trump administration appears to be enforcing the rules as strictly as possible. Per this article from Marketpla

There's been no legislative change, but the the Trump administration appears to be enforcing the rules as strictly as possible. Per this article from Marketplace (https://www.marketplace.org/2018/10/05/business/recent-immigration-policy-moves-vex-us-workers-abroad https://www.marketplace.org/2018/10/05/business/recent-immig...), they've ended expedited processing of H-1Bs, they're questioning more H-1B applications and they're denying more H-1B applications. They are definitely making it as hard as possible for H-1Bs within the current rules.