I guess there is somethin inside which not on;y Republicans but also POTUS does not like.
However, I think Trump is not too much concerned about the spendings and dept, because I assume that in his (potential) second term he will strip the Federal Reserve Bank of its power to loan money to the government at interest and will cut the government dept. Same like JFK did it.
http:// www.john-f-kennedy.net/executiveorder11110.htm
But to do it POTUS needs to bring back jobs first and needs to reduce the trade deficit.
Currently the US power is only based on the military and that the USD is the lead currency. So, before chaninging it POTUS needs to rebuild the industry and manufacturing.
If POTUS leaves the private FED in power on a potential second term, that he is for sure part of the cabal.