If Trump has something, he needs to provide the information and its sources with specificity. Then we'll go out and check The Donald's allegations. Otherwise it's just innuendo. Worthy of a lib/prog hack, but not a serious conservative candidate.
Trump is making a generalized statement that the dems have been making and that Hillary will be making in the election.
Republican taxcuts have been detrimental to the economy and specifically look at what happened in Wisconsin, Kansas, New Jersey, and Louisiana.
They say that the GOP premise of taxcuts for the rich generating revenue for the state has failed which results in cuts to "roads, schools, and hospitals"(Trump's words).
The only people that benefit are the GOP's rich campaign doners.