If you look at the 2017 constution it tells you who is on the committies to elect the next senators and guess what its army generals No civilians or politicians.
The senators Should Not have an opinion there are there to serve the will of the people but that will not happen they are there to serve themselves,
Power in Thailand isn't given, it is taken. If Pita and the Pro-Democracy side want to govern, they need to start fighting back, and quickly. Political power is an ephemeral thing as it is rarely measured, The vast majority of time, political power exists simply because people think you have it. Conversely, if people don't think you have it, you don't have it.
MFP won a mandate to reform. Pheu Thai also won a mandate to reform.
If they don't deliver, they are toast.