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WASHINGTON (Reuters) - Top advisers to President Donald Trump will present him with a proposed immigration plan in coming days that will cover border security and immigration reform, his senior adviser and son-in-law Jared Kushner said on Tuesday.

The plan will cover stopping illegal immigration - one of Trump’s signature campaign issues - and will also include proposals for a merit-based immigration system, a guest worker program for agriculture and seasonal work, and measures for improving trade flow, Kushner said.

Speaking at a Time Magazine forum, Kushner said he would present what he described as a “very detailed” plan to Trump at the end of the week or early next week.

“He’ll make some changes, likely, and then he’ll decide what he wants to do with it,” Kushner said.

Trump pledged to build a wall on the southern border with Mexico in his 2016 run for office, and has since fought with Congress and in the courts for funding to pay for the barrier.

He has argued the wall is needed to prevent illegal migrants from Central America from entering the country, and has pushed to change laws to make it easier to deport immigrants.

Kushner has held about 50 listening sessions with conservative groups on immigration, a senior administration official said. He has been working with White House economic adviser Kevin Hassett and policy adviser Stephen Miller on the plan.

Any immigration overhaul would require legislation from Congress to pass - a difficult order in the time leading up to the next presidential election in November 2020, particularly since Democrats control the House of Representatives.