U.S. President Donald Trump on Thursday will outline an immigration plan aimed at hardening border ports of entry and making the legal migration system based more on a proficiency in English and employment, senior administration officials said.

Trump's immigration proposal, the product largely of senior advisers Jared Kushner and Stephen Miller and economic aide Kevin Hassett, is an effort to provide a framework for Republicans to rally around.

While its chances of approval by Congress seem distant, the plan will give Republicans an outline they can say they favor as Trump and lawmakers look toward the November 2020 presidential and congressional elections, where immigration will likely be a key issue.