https://www.businessinsider.co... President Donald Trump extended a freeze on immigration visas through the end of 2020 in a proclamation he signed on Monday. The proclamation extends the 60-day freeze on work visas put in place in April. A wide swath of professions will be affected, including those in the tech industry and at universities, as well as au pairs. H-1B, H-2B, H-4, J-1, and L-1 visas will be halted under the order.