Microsoft corporation and other technology companies are trying to convince congress to raise or remove the H1B visa cap. They’ll likely have more luck getting congress to add some additional visas to the cap than they will have getting congress to eliminate the cap – at least in the short term.
The damage being done to US companies by the increasingly restrictive policies with regards to all immigrants but particularly technology companies is severe. Unfortunately, congress does not generally have a lot of foresight and only after other nations surpass the US in technology innovation and production will anything be done and at that point it may be too late.