The economy is doing quite well right now. That’s not all due to GOP policies, but a pro-business administration certainly hasn’t hurt.
The stock market is doing very well.... I'm not sure that in itself means the economy is doing well. Unemployment is an important factor to the overall health of the economy.
The rate of job creation the first year under Trump is lower than the last year under Obama. That is the cold hard fact here. Now what it means or what caused it is so complex and dynamic that it is literally impossible to attribute it to any single factor but that won't stop partisans on both sides from using it to advance their agenda:
Version 1:
Trump and the GOP are pro-business. Obama and the liberals are anti-business. It is Obama's fault that job creation is slowing.
Version 2:
Obama was able to oversee the longest period of expansion and job growth in the history of the country and now that Trump is president, job creation is slowing.
See how easy that is. In reality, much broader factors are affecting GDP and employment (employment rate and wages). Overall, there was nothing to complain about regarding employment under Obama (although that did not stop our current president). GDP grew every year for 7 years or something and unemployment declined to historically low levels. Business experienced record profits and the stock market soared (as it has continued to do under Trump).
The catch is that in spite of full employment and record corporate profits, wages did not increase. This troubled economists and in particular Madam Fed Chairman. Under these conditions, inflation (wages and prices) has always resulted but in this period, it did not.
I say this because all this GOP bluster around being pro-business and all is ignoring actual conditions. Business are doing better than they ever have but aren't increasing wages and are not expanding. Throwing a tax break at them, or any other "pro-business actions" is not going to change this but hey, so long as you can say you are pro-business and people believe it, why not.