Mexico had no specific target for the reduction of migrant numbers, Ebrard said.
"We do not anticipate a problem with the vote but, if for any reason the approval is not forthcoming, tariffs will be reinstated", he added, without elaborating.
President Trump evidently knows something about the art of the tariff threat.
The proposed tariffs would have increased 5% per month, maxing out at 25%, until Mexico brought the flow of illegal immigration to a stop.
"We have fully signed and documented another very important part of the Immigration and Security deal with Mexico, one that the United States has been asking about getting for many years".
The President had been threatening to impose tariffs on Mexican goods imported into the USA for months in a bid to encourage the country's government to step up enforcement on illegal immigration.
For now, the deal ends plans by the Trump administration to slap a 5 percent tariff on all goods coming into the US from Mexico - something that had sparked fears from both Democrats and Republicans in Congress about the possible economic fallout from such a move. "It will be revealed in the not too distant future and will need a vote by Mexico's Legislative body!" That's the difference. They couldn't get it'.
Ebrard also said there was no agreement between the U.S. and Mexico to buy more agricultural products under the accord, despite Trump saying over the weekend that Mexico had agreed to buy "large quantities" from United States farmers.
However, he said other Latin American countries should share the burden, something that the United States appeared to have agreed to.
'Even now, the foreign minister of Mexico is saying that's not really the way the president describes is not really the way what we have agreed to, ' she said. "That will be announced at the appropriate time". Mexico, however, had already meant to do that before Trump's latest threat and had made that clear to US officials. Since many travel with children - who can not be held in detention longterm - they are released into the United States to await the resolution of their asylum cases, something the president calls " catch and release".
But The Washington Post on Tuesday published a separate report, citing Trump administration and Mexican officials as well as documents, giving a different perspective.
"We have been trying to get some of these Border Actions for a long time, as have other administrations, but were not able to get them, or get them in full, until our signed agreement with Mexico", he tweeted Sunday, adding during a call-in interview with CNBC Monday morning that officials had "talked about it for months and months and months", but couldn't reach agreement until the threat.
Expressions by migrants of a fear of returning to their home countries triggers a US immigration court process, which can take months or years to resolve due to backlogs in the system.
He said the agreement that he waved around would go into affect at his discretion.
Trump has dangled the prospect of renewing his tariff threat if the US ally doesn't cooperate to his liking.
Mexico's President Andrés Manuel López Obrador during a press conference at the National Palace, in Mexico City, on May 31, 2019.