Trump travel visa: What are the changes to H-1B visa – when will they come in?

In 2018, the United States hit the limit on the number of H-1Bs it could issue, 65,000, by the first week of April, according to the Department of Homeland Security.

US companies often use H-1B visas to hire graduate-level workers in several specialised fields, including information technology, medicine, engineering and mathematics.

This is not Mr Trump’s first attempt to overhaul visas – in April 2017, he ordered a reform of the US visa program to benefit educated and highly skilled workers.

The tweet on the visa program came amid his battle with congressional Democrats over spending legislation to fund the federal government.