Donald Trump explains plan to fund wall along US-Mexico border

CLEVELAND -- One of Donald Trump's more controversial proposals is the plan to build a wall between the U.S. and Mexico. Now, he's breaking down the plan behind how the wall would be paid for.

WATCH LIVE: ABC News coverage of the Republican National Convention

Trump said building the wall will cost $5 billion to $10 billion, and he's said all along that it will be Mexico that pays for the wall.

RELATED: Parts of Melania Trump's RNC speech identical to Michelle Obama's 2008 speech

Here's how Trump says he will do it.

"It's an easy decision for Mexico: Make a one-time payment of 5 to 10 billion dollars to ensure that 24 billion continues to flow into their country year after year," Trump says on

The $24 billion Trump is talking about is the amount of money Mexican nationals make in the United States and send back to their families in Mexico. According to Trump, most of that money is sent by "illegal aliens."

RELATED: Trump campaign chairman denies Melania Trump's plagiarism allegations

If the Mexican government doesn't pay for the wall, Trump says he will stop that money from leaving the U.S. by requiring that before any transaction takes place, the person sending the money has to prove they are in the U.S. legally.

Trump describes this money as "de facto welfare for poor families in Mexico."

If Mexico still doesn't come around, Trump says he'll begin tougher enforcement on trade tariffs and existing trade rules.

RELATED: Queen tweets disapproval over use of 'We Are The Champions' at RNC

Then he'll start "canceling visas," calling the hundreds of thousands of visas granted to Mexican nationals every year "one of our greatest leverage points."

And finally, if Mexico still doesn't pay, he'll increase visa fees and use that money to pay for the wall.

Whether this plan is feasible or even legal will require further analysis.

ABC7 anchor Reggie Aqui and reporter Laura Anthony are reporting live from the RNC in Ohio. You can follow them on social media: Click here to follow Reggie on Facebook and click here for Twitter. Track Laura Anthony on Facebook here and follow her Twitter here.

For full coverage of the 2016 RNC, click here, and click here for full coverage on the presidential race.
Copyright © 2019 KABC-TV. All Rights Reserved.