Even if it were true, it defies all economic sense that 4 weeks of protectionist policy changes (most of which haven't even been implemented yet) were the cause of a salary rise.
You don't really understand how businesses work, do you?
After Trump was elected and laid out plans, businesses can reasonably know that the corporate tax rate will go down - not the precise amount, but at least a 10% drop - that is a lot of money for even small businesses.
They know that is true across to board in America. So that means businesses simps will have more cash to spend.
Given that most companies will be able to spend more, why would you not plan for the future right now? Why would you not hire more now, or give a better salary raise in order to stave off good employees being poached by coming inevitable hiring surges?
As a concrete example, I have my own small consulting business. As a result of anticipated tax reductions, I knew I would have more money this year so at the end of last year I increased charitable contributions.
The details of actual policies do not matter nearly so much as the certainly in broad strokes that something will happen to improve the outlooks for a business.